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Astral Codex Ten Podcast

Astral Codex Ten Podcast

1,194 episodes — Page 21 of 24

Ep 194In Favor of Niceness, Community, and Civilization [Classic]

[Content warning: Discussion of social justice, discussion of violence, spoilers for Jacqueline Carey books.] [Edit 10/25: This post was inspired by a debate with a friend of a friend on Facebook who has since become somewhat famous. I've renamed him here to "Andrew Cord" to protect his identity.] I. Andrew Cord criticizes me for my bold and controversial suggestion that maybe people should try to tell slightly fewer blatant hurtful lies: I just find it kind of darkly amusing and sad that the "rationalist community" loves "rationality is winning" so much as a tagline and yet are clearly not winning. And then complain about losing rather than changing their tactics to match those of people who are winning. Which is probably because if you *really* want to be the kind of person who wins you have to actually care about winning something, which means you have to have politics, which means you have to embrace "politics the mindkiller" and "politics is war and arguments are soldiers", and Scott would clearly rather spend the rest of his life losing than do this. That post [the one debunking false rape statistics] is exactly my problem with Scott. He seems to honestly think that it's a worthwhile use of his time, energy and mental effort to download evil people's evil worldviews into his mind and try to analytically debate them with statistics and cost-benefit analyses. He gets *mad* at people whom he detachedly intellectually agrees with but who are willing to back up their beliefs with war and fire rather than pussyfooting around with debate-team nonsense. It honestly makes me kind of sick. It is exactly the kind of thing that "social justice" activists like me *intend* to attack and "trigger" when we use "triggery" catchphrases about the mewling pusillanimity of privileged white allies. In other words, if a fight is important to you, fight nasty. If that means lying, lie. If that means insults, insult. If that means silencing people, silence. It always makes me happy when my ideological opponents come out and say eloquently and openly what I've always secretly suspected them of believing. My natural instinct is to give some of the reasons why I think Andrew is wrong, starting with the history of the "noble lie" concept and moving on to some examples of why it didn't work very well, and why it might not be expected not to work so well in the future. But in a way, that would be assuming the conclusion. I wouldn't be showing respect for Andrew's arguments. I wouldn't be going halfway to meet them on their own terms. The respectful way to rebut Andrew's argument would be to spread malicious lies about Andrew to a couple of media outlets, fan the flames, and wait for them to destroy his reputation. Then if the stress ends up bursting an aneurysm in his brain, I can dance on his grave, singing: ♪ ♬ I won this debate in a very effective manner. Now you can't argue in favor of nasty debate tactics any more ♬ ♪ I'm not going to do that, but if I did it's unclear to me how Andrew could object. I mean, he thinks that sexism is detrimental to society, so spreading lies and destroying people is justified in order to stop it. I think that discourse based on mud-slinging and falsehoods is detrimental to society. Therefore…

Jun 1, 201945 min

Ep 193Postscript to APA Photo-Essay

I was surprised how many people responded to my APA photo-essay with comments like "Seems psychiatry as a field is broken beyond repair" or "This proves you should never trust psychiatrists". The mood I was going for was more "let's share a laugh at the excesses of the profession" than "everything must be burned down". Looks like I missed it. I was disappointed to see a lot of the most hostile comments coming from people in tech. It would be easy to write an equally damning report on the tech industry. Just cobble together a few paragraphs about Juicero and Theranos, make fun of whatever weird lifestyle change @jack is supporting at the moment, and something something Zuckerberg something Cambridge Analytica something. You can even throw in something about James Damore (if you're writing for the left) or about the overreaction to James Damore (if you're writing for the right). And there you go! Tech is a malicious cancerous industry full of awful people and everyone should hate it. We've all read this exact thinkpiece a thousand times. I've tried to push back against this line of thinking. A lot of the most visible and famous things in tech are bad, because scum tends to rise to the top. But there's also some extraordinary innovation going on, and some extraordinarily good people involved. "@jack invents new health fad of rolling around naked on glaciers" is a much juicier story than "we can now fit twice as many billions of transistors on a chip as we could last year", but tech journalism that only reports on the former is missing an important part of the story. I feel the same way about psychiatry. There's a lot of cringeworthy stuff going on at conferences, but conferences are designed to be about signaling and we shouldn't expect otherwise. There's also a lot of great people working really hard to help fight mental illness and support the mentally ill. "Most Americans remain alive and basically functional despite record-breaking amounts of depression and anxiety" isn't sexy any more than "Internet continues to connect billions of people around the world at the speed of light" is sexy. But it's a much bigger part of the story than the part where silly people do silly things at conferences.

May 30, 20194 min

Ep 192The APA Meeting: A Photo-Essay

The first thing you notice at the American Psychiatric Association meeting is its size. By conservative estimates, a quarter of the psychiatrists in the United States are packed into a single giant San Francisco convention center, more than 15,000 people. Being in a crowd of 15,000 psychiatrists is a weird experience. You realize that all psychiatrists look alike in an indefinable way. The men all look balding, yet dignified. The women all look maternal, yet stylish. Sometimes you will see a knot of foreign-looking people huddled together, their nametags announcing them as the delegation from the Nigerian Psychiatric Association or the Nepalese Psychiatric Association or somewhere else very far away. But however exotic, something about them remains ineffably psychiatrist. The second thing you notice at the American Psychiatric Association meeting is that the staircase is shaming you for not knowing enough about Vraylar®. Seems kind of weird. Maybe I'll just take the escalator …no, the escalator is advertising Latuda®, the "number one branded atypical antipsychotic". Aaaaaah! Maybe I should just sit down for a second and figure out what to do next… AAAAH, CAN'T SIT DOWN, VRAYLAR® HAS GOTTEN TO THE BENCHES TOO! Surely there's a non-Vraylar bench somewhere in this 15,000 person convention center!

May 25, 201933 min

Ep 191A Critical Period for Lactation Fetishes

Enquist et al on lactation fetishes is one of my favorite papers. They wonder – as we've all wondered at one point or another – how people develop fetishes. One plausible hypothesis is "sexual imprinting". During childhood, you have a critical period (maybe ages 1 to 5) where you figure out what sex is. If you see some weird stuff during that time, you could end up with a fetish. For example, a child who sees latex used in a sexualized way (for example, they catch a glimpse of a sexy movie where someone is wearing latex) might grow up with a latex fetish. Enquist et al realize lactation fetishes offer a natural test of this hypothesis. Children with younger siblings will see a lot of breastfeeding going on during their critical window; children without younger siblings will see less. Since it's easy to ask people how many siblings they have, you can see if younger siblings correlate with lactation fetishes. They survey some online lactation fetishist communities and ask everyone how many older and younger siblings they have. Although by chance we would expect an equal number of both, in fact the fetishists have many more younger than older siblings:

May 17, 20196 min

Ep 190Age Gaps and Birth Order Effects

Psychologists are split on the existence of "birth order effects", where oldest siblings will have different personality traits and outcomes than middle or youngest siblings. Although some studies detect effects, they tend to be weak and inconsistent. Last year, I posted Birth Order Effects Exist And Are Very Strong, finding a robust 70-30 imbalance in favor of older siblings among SSC readers. I speculated that taking a pre-selected population and counting the firstborn-to-laterborn ratio was better at revealing these effects than taking an unselected population and trying to measure their personality traits. Since then, other independent researchers have confirmed similar effects in historical mathematicians and Nobel-winning physicists. Although birth order effects do not seem to consistently affect IQ, some studies suggest that they do affect something like "intellectual curiosity", which would explain firstborns' over-representation in intellectual communities. Why would firstborns be more intellectually curious? If we knew that, could we do something different to make laterborns more intellectually curious? A growing body of research highlights the importance of genetics on children's personalities and outcomes, and casts doubt on the ability of parents and teachers to significantly affect their trajectories. But here's a non-genetic factor that's a really big deal on one of the personality traits closest to our hearts. How does it work? People looking into birth order effects have come up with a couple of possible explanations: 1. Intra-family competition. The oldest child choose some interest or life path. Then younger children don't want to live in their older sibling's shadow all the time, so they do something else. 2. Decreased parental investment. Parents can devote 100% of their child-rearing time to the oldest child, but only 50% or less to subsequent children.

May 16, 201912 min

Ep 189Is There a Case for Skepticism of Psychedelic Therapy?

There's been an explosion of interest in the use of psychedelics in psychiatry. Like everyone else, I hope this works out. But recent discussion has been so overwhelmingly positive that it's worth reviewing whether there's a case for skepticism. I think it would look something like this: 1. Psychedelics have mostly been investigated in small studies run by true believers. These are the conditions that produce a field made of unreplicable results, like the effects of 5-HTTLPR. Some of the most exciting psychedelic findings have already failed to replicate; for example, a study two years ago found that psilocybin did not permanently increase the Openness personality trait. This was one of the most exciting studies and had shaped a lot of my thinking around the issue. Now it's gone. 2. Some of the most impressive stories involve psychedelic-assisted psychotherapy, where people who talk with a therapist, while on a substance, obtain true insight and get real closure. But every psychotherapy has amazing success stories floating out there. Back when psychoanalysis was new, the whole world was full of people telling their amazing success stories about how Dr. Freud helped them obtain true insight and get real closure. I think of psychotherapy as a domain where people can get as many amazing success stories as they want whether or not they're really doing anything right, for unclear reasons.

May 12, 20198 min

Ep 1885-HTTLPR: A Pointed Review

In 1996, some researchers discovered that depressed people often had an unusual version of the serotonin transporter gene 5-HTTLPR. The study became a psychiatric sensation, getting thousands of citations and sparking dozens of replication attempts (page 3 here lists 46). Soon scientists moved beyond replicating the finding to trying to elucidate the mechanism. Seven studies (see herefor list) found that 5-HTTLPR affected activation of the amygdala, a part of the brain involved in processing negative stimuli. In one especially interesting study, it was found to bias how the amygdala processed ambiguous facial expression; in another, it modulated how the emotional systems of the amygdala connected to the attentional systems of the anterior cingulate cortex. In addition, 5-HTTLPR was found to directly affect the reactivity of the HPA axis, the stress processing circuit leading from the adrenal glands to the brain. As interest increased, studies began pointing to 5-HTTLPR in other psychiatric conditions as well. One study found a role in seasonal affective disorder, another in insomnia. A meta-analysis of twelve studies found a role (p = 0.001) in PTSD. A meta-analysis of twenty-three studies found a role (p = 0.000016) in anxiety-related personality traits. Even psychosis and Alzheimer's disease, not traditionally considered serotonergic conditions, were affected. But my favorite study along these lines has to be 5-HTTLPR Polymorphism Is Associated With Nostalgia-Proneness. Some people in bad life situations become depressed, and others seem unaffected; researchers began to suspect that genes like 5-HTTLPR might be involved not just in causing depression directly, but in modulating how we respond to life events. A meta-analysis looked at 54 studies of the interaction and found "strong evidence that 5-HTTLPR moderates the relationship between stress and depression, with the s allele associated with an increased risk of developing depression under stress (P = .00002)". This relationship was then independently re-confirmed for every conceivable population and form of stress. Depressed children undergoing childhood adversity. Depressed children with depressed mothers. Depressed youth. Depressed adolescent girls undergoing peer victimization. They all developed different amounts of depression based on their 5-HTTLPR genotype. The mainstream media caught on and dubbed 5-HTTLPR and a few similar variants "orchid genes", because orchids are sensitive to stress but will bloom beautifully under the right conditions. Stories about "orchid genes" made it into The Atlantic, Wired, and The New York Times. In 1996, some researchers discovered that depressed people often had an unusual version of the serotonin transporter gene 5-HTTLPR. The study became a psychiatric sensation, getting thousands of citations and sparking dozens of replication attempts (page 3 here lists 46). Soon scientists moved beyond replicating the finding to trying to elucidate the mechanism. Seven studies (see herefor list) found that 5-HTTLPR affected activation of the amygdala, a part of the brain involved in processing negative stimuli. In one especially interesting study, it was found to bias how the amygdala processed ambiguous facial expression; in another, it modulated how the emotional systems of the amygdala connected to the attentional systems of the anterior cingulate cortex. In addition, 5-HTTLPR was found to directly affect the reactivity of the HPA axis, the stress processing circuit leading from the adrenal glands to the brain. As interest increased, studies began pointing to 5-HTTLPR in other psychiatric conditions as well. One study found a role in seasonal affective disorder, another in insomnia. A meta-analysis of twelve studies found a role (p = 0.001) in PTSD. A meta-analysis of twenty-three studies found a role (p = 0.000016) in anxiety-related personality traits. Even psychosis and Alzheimer's disease, not traditionally considered serotonergic conditions, were affected. But my favorite study along these lines has to be 5-HTTLPR Polymorphism Is Associated With Nostalgia-Proneness. Some people in bad life situations become depressed, and others seem unaffected; researchers began to suspect that genes like 5-HTTLPR might be involved not just in causing depression directly, but in modulating how we respond to life events. A meta-analysis looked at 54 studies of the interaction and found "strong evidence that 5-HTTLPR moderates the relationship between stress and depression, with the s allele associated with an increased risk of developing depression under stress (P = .00002)". This relationship was then independently re-confirmed for every conceivable population and form of stress. Depressed children undergoing childhood adversity. Depressed children with depressed mothers. Depressed youth. Depressed adolescent girls undergoing peer victimization. They all developed different amounts of depression based on their 5-HTTLPR genotype. Th

May 10, 201923 min

Ep 187Little Known Types of Eclipse

A lunar eclipse occurs when the Earth gets between the Moon and the Sun. A solar eclipse occurs when the Moon gets between the Earth and the Sun. A terrestrial eclipse occurs when the Earth gets between you and the Sun. Happens once per 24 hours. An atmospheric eclipse occurs when an asteroid gets between you and the sky. Generally fatal. A reverse solar eclipse occurs when the Sun gets between the Moon and the Earth. Extremely fatal. A motivational eclipse occurs when the Moon gets between you and your goals. You can't let it stop you! Destroy it! Destroy the Moon! A marital eclipse occurs when the Moon gets between you and your spouse. You're going to need to practice good communication about the new celestial body in your life if you want your relationship to survive. A capillary eclipse occurs when your hair gets between your eyes and the Sun. Get a haircut.

May 4, 20192 min

Ep 186Update to Partial Retraction of Animal Value and Neuron Number

A few weeks ago I published results of a small (n = 50) survey showing that people's moral valuation of different kinds of animals scaled pretty nicely with the animals' number of cortical neurons (see here for more on why we might expect that to be true). A commenter, Tibbar, did a larger survey on Mechanical Turk and got very different results, so I retracted the claim. I wasn't sure why we got such different results, but I chalked it down to chance, or perhaps to my having surveyed an animal-rights-conscious crowd who thinks a lot about this kinds of things vs. Tibbar surveying random MTurkers. Now David Moss, from effective altruist organization Rethink Priorities, has looked into this more deeply and resolved some of the discrepancies. The problem is that I did a terrible job explaining my procedure (I linked to the form I used, but the link was broken when Tibbar did his survey). In particular, I included the line: If you believe [animals have moral value] in general, but think some specific animal I ask about doesn't work this way, feel free to leave the question blank or put in "99999", which I will interpret as "basically infinity"

May 4, 20197 min

Ep 185Buspirone Shortage in Healthcaristan SSR

(Epistemic status: Unsure on details. Some post-publication edits 5/1 to make this less strident.) I. There is a national shortage of buspirone. Buspirone is a 5HT-1 agonist used to control anxiety. Unlike most psychiatric drugs, it's in a class of its own – there are no other sole 5HT-1 agonists on the market. It's not a very strong medication, but it's safe, it's non-addictive, it's off-patent, and it works well for a subset of patients. Some of them have been on it for years. Now there's a national shortage. My patients can't get it, or have to go hunting from pharmacy to pharmacy until they find one that has it. I've told people find a source to stockpile a supply so they don't run out. It feels like we're living in the Soviet Union. How did this happen? The New York Times writes: The main reason for the buspirone shortage appears to be interrupted production at a Mylan Pharmaceuticals plant in Morgantown, W.Va., which produced about a third of the country's supply of the drug. The Food and Drug Administration had said the facility was dirty and that the company failed to follow quality control procedures.

May 3, 201920 min

Ep 3841960: The Year the Singularity Was Cancelled

[Epistemic status: Very speculative, especially Parts 3 and 4. Like many good things, this post is based on a conversation with Paul Christiano; most of the good ideas are his, any errors are mine.] I. In the 1950s, an Austrian scientist discovered a series of equations that he claimed could model history. They matched past data with startling accuracy. But when extended into the future, they predicted the world would end on November 13, 2026. This sounds like the plot of a sci-fi book. But it's also the story of Heinz von Foerster, a mid-century physicist, cybernetician, cognitive scientist, and philosopher. His problems started when he became interested in human population dynamics. (the rest of this section is loosely adapted from his Science paper "Doomsday: Friday, 13 November, A.D. 2026") Assume a perfect paradisiacal Garden of Eden with infinite resources. Start with two people – Adam and Eve – and assume the population doubles every generation. In the second generation there are 4 people; in the third, 8. This is that old riddle about the grains of rice on the chessboard again. By the 64th generation (ie after about 1500 years) there will be 18,446,744,073,709,551,616 people – ie about about a billion times the number of people who have ever lived in all the eons of human history. So one of our assumptions must be wrong. Probably it's the one about the perfect paradise with unlimited resources. Okay, new plan. Assume a world with a limited food supply / limited carrying capacity. If you want, imagine it as an island where everyone eats coconuts. But there are only enough coconuts to support 100 people. If the population reproduces beyond 100 people, some of them will starve, until they're back at 100 people. In the second generation, there are 100 people. In the third generation, still 100 people. And so on to infinity. Here the population never grows at all. But that doesn't match real life either.

Apr 24, 201927 min

Ep 183Highlights From the Comments on College Admissions

HalTheWise discusses a factor I missed (until I sneakily edited it in, so you may have read the later version that included it): One very powerful contributor that Scott did not mention is that in many cases schools are directly or indically intentivized to have a low admission rate. US news & world report released the first national college ranking in 1983, and donors and board members at various schools have increasingly been using national rankings performance, which directly includes low admissions rates, as a measure of how well a school is doing. These rankings and metrics also heavily incentivize having high yield (a large fraction of students that are admitted end up attending) which for a fixed size applicant pool also encourages accepting as few people as possible. This has led to the death of safety schools, because they would rather reject a high performing student than admit them and have them not attend. These factors might also be a driving force behind the rise of common app, since schools are trying to get as many applicants as possible, even if it hurts the quality of their pool. kaakitwitaasota points out that consulting is an exception to the "where you go to school doesn't matter" principle:A lot of top firms these days won't even look at you if you didn't go to the "right" college. My mother did her MBA at Northeastern, and recently had lunch with an old classmate who ended up at a top consulting firm. My mother's classmate's résumé would end up in the trash unread these days–Northeastern isn't considered good enough. So while it's probably true on the macro level that smart kids will do just fine anywhere they end up, there is a subset of extremely prestigious, extremely well-paid jobs which will not even look at you if you didn't get into the right institution at the age of 18–which, in practice, means that the élite are chosen on the basis of who they were at the age of 14-17. When viewed in those terms, it's completely nuts. I'd heard this before; my impression is that a big part of consulting is having prestigious-looking people tell you what you want to hear. If what they're actually hiring for is prestige rather than competence per se, that could make it a special case

Apr 19, 201934 min

Ep 182Increasingly Competitive College Admissions: Much More Than You Wanted to Know

0: Introduction This is from businessstudent.com Acceptance rates at top colleges have declined by about half over the past decade or so, raising concern about intensifying academic competition. The pressure of getting into a good university may even be leading to suicidesat elite high schools. Some people have dismissed the problem, saying that a misplaced focus on Harvard and Yale ignores that most colleges are easier to get into than ever. For example, from The Atlantic, Is College Really Harder To Get Into Than It Used To Be?: If schools that were once considered "safeties" now have admissions rates as low as 20 or 30 percent, it appears tougher to get into college every spring. But "beneath the headlines and urban legends," Jim Hull, senior policy analyst at the National School Board Association's Center for Public Education, says their 2010 report shows that it was no more difficult for most students to get into college in 2004 than it was in 1992. While the Center plans to update the information in the next few years to reflect the past decade of applicants, students with the same SAT and GPA in the 90's basically have an equal probability of getting into a similarly selective college today. Their link to the report doesn't work, so I can't tell if this was ever true. But it doesn't seem true today. From Pew: The first graph shows that admission rates have decreased at 53% of colleges, and increased at only 31%. The second graph shows that the decreases were mostly at very selective schools, and the increases were mostly at less selective schools. We shouldn't exaggerate the problem: three-quarters of US students go to non-selective colleges that accept most applicants, and there are more than enough of these for everyone. But if you are aiming for a competitive school – not just Harvard and Yale, but anywhere in the top few hundred institutions – the competition is getting harder. This matches my impression of "facts on the ground". In 2002, I was a senior at a California high school in a good neighborhood. Most of the kids in my class wanted to go to famous Ivy League universities, and considered University of California colleges their "safety schools". The idea of going to Cal State (California's middle- and lower- tier colleges) felt like some kind of colossal failure. But my mother just retired from teaching at a very similar school, and she says nowadays the same demographic of students would kill to get into a UC school, and many of them can't even get into Cal States. The stories I hear about this usually focus on how more people are going to college today than ever, but there's still only one Harvard, so there's increasing competition for the same number of spots.

Apr 19, 20191h 8m

Ep 181Pain as Active Ingredient in Dating

Reciprocity is a simple dating site, created by some friends of mine. You sign up and see a list of all your Facebook friends who also signed up. You can put a checkmark next to their name to indicate you want to date them (they can't see this). If you both checkmark each other, then the site reveals you've matched. This seemed like an obvious great idea. But I started to hear a lot of stories like the following: "I checkmarked Alice's name on Reciprocity, and the system didn't notify me that there was a match, so I assumed Alice didn't like me. Later I asked her out in person, and she said yes and we had a great time." I always figured Alice was just a jerk who was ruining the system for everyone else. After all, the whole premise was to incentivize honesty. Checkmark the names of people you honestly want to date. If they don't want to date you, they never hear about it, and you would be no worse off. If they do want to date you, the system will let you know, and you can arrange a date. If your pattern of checkmarks doesn't really match who you want to date, you're just screwing yourself and everyone else over for no reason. A few months ago, someone asked me out on a date and I said yes. And I realized I hadn't checkmarked them on Reciprocity. This caused a crisis of self-loathing. What's wrong with me? Why would I go against my own incentives and ruin things for everyone else? I asked a friend, who admitted she had done the same thing. Her theory was that asking someone on a date (with all of its accompanying awkwardness and difficulty) was a stronger signal of interest than ticking a checkbox. And potentially there's a grey zone of people who you would only date if you thought they liked you more than a certain amount. And asking them in person is hard enough to be a costly signal that you like them at least that amount, but ticking a checkbox isn't.

Apr 12, 20194 min

Ep 180Short Book Reviews April 2019

Timothy Carey's Method Of Levels teaches a form of psychotherapy based on perceptual control theory. The Crackpot List is specific to physics. But if someone were to create one for psychiatry, Method of Levels would score a perfect 100%. It somehow manages to do okay on the physics one despite not discussing any physics. The Method of Levels is the correct solution to every psychological problem, from mild depression to psychosis. Therapists may be tempted to use something other than the Method of Levels, but they must overcome this temptation and just use the Method of Levels on everybody. Every other therapy is about dismissing patients as "just crazy", but the Method of Levels tries to truly understand the patient. Every other therapy is about the therapist trying to change the patient, but the Method of Levels is about the patient trying to change themselves. The author occasionally just lapses into straight-up daydreams about elderly psychologists sitting on the porch, beating themselves up that they were once so stupid as to believe in psychology other than the Method of Levels. This book isn't just bad, it's dangerous. One vignette discusses a patient whose symptoms clearly indicate the start of a manic episode. The author recommends that instead of stigmatizing this person with a diagnosis of bipolar or pumping them full of toxic drugs, you should use the Method of Levels on them. This is a good way to end up with a dead patient. I like perceptual control theory. I share the author's hope that it could one day be a theory of everything for the brain. But even if it is, you can't use theories of everything to do clinical medicine. Darwin discovered a theory of everything for biology, but you can't reason from evolutionary first principles to how to treat a bacterial infection. You should treat the bacterial infection with antibiotics. This will be in accordance with evolutionary principles, and there will even be some cool evolutionary tie-ins (fungi evolved penicillin as a defense against bacteria). But you didn't discover penicillin by reasoning from evolutionary first principles. If you tried reasoning from evolutionary first principles, you might end up trying to make the bacteria mutate into a less dangerous strain during the middle of an osteomyelitis case or something. Just use actually existing clinical medicine and figure out the evolutionary justification for it later.

Apr 11, 201918 min

Ep 179Social Censorship: The First Offender Model

RJ Zigerell (h/t Marginal Revolution) studies public support for eugenics. He finds that about 40% of Americans support some form of eugenics. The policies discussed were very vague, like "encouraging poor criminals to have fewer children" or "encouraging intelligent people to have more children"; they did not specify what form the encouragement would take. Of note, much lack of support for eugenics was a belief that it would not work; people who believed the qualities involved were heritable were much more likely to support programs to select for them. For example, of people who thought criminality was completely genetic, a full 65% supported encouraging criminals to have fewer children. I was surprised to hear this, because I thought of moral opposition to eugenics was basically universal. If a prominent politician tentatively supported eugenics, it would provoke a media firestorm and they would get shouted down. This would be true even if they supported the sort of generally mild, noncoercive policies the paper seems to be talking about. How do we square that with a 40% support rate? I think back to a metaphor for norm enforcement I used in an argument against Bryan Caplan:

Apr 4, 20198 min

Ep 178Two Wolves and a Sheep

Democracy is two wolves and a sheep deciding what to have for dinner. "Mutton" takes the popular vote, but "grass" wins in the Electoral College. The wolves wish they hadn't all moved into the same few trendy coastal cities. Democracy is two wolves and a sheep deciding what to have for dinner. The Timber Wolf Party and the Gray Wolf Party spend most of their energy pandering shamelessly to the tiebreaking vote. Democracy is two wolves and a sheep deciding what to have for dinner. Everyone agrees to borrow money, go to a fancy French restaurant, and leave the debt to the next generation. Democracy is two wolves and a sheep deciding what to have for dinner. The sheep votes for the Wolf Party, because he agrees with them on social issues. Democracy is two wolves and a sheep deciding what to have for dinner. "Grass" wins the tenth election in a row, thanks to the dominance of special interests. Democracy is two wolves and a sheep deciding what to have for dinner. FactCheck.org rates the Wolf Party's claim that mutton can be made without harming sheep as "Mostly False". Democracy is two wolves and a sheep deciding what to have for dinner. The main issue this election is whether two more sheep should be allowed to immigrate. Democracy is two wolves and a sheep deciding what to have for dinner. A government shutdown is narrowly averted when everyone agrees to what becomes known as the Mutton With A Side Of Grass Compromise; disappointed activists are urged to "keep their demands realistic". Democracy is two wolves and a sheep deciding what to have for dinner. They choose borscht. Election officials suspect foul play.

Mar 31, 20194 min

Ep 177Partial Retraction of Post on Animal Value and Neural Number

Commenter Tibbar used Mechanical Turk to replicate my survey on how people thought about the moral weights of animals. After getting 263 responses (to my 50), he reports different results: Chicken: 25 Chimpanzee: 2 Cow: 3 Elephant: 1 Lobster: 60 Pig: 5 Human: 1 On the one hand, Mechanical Turkers sometimes aren't a great sample, and some of them seem to have just put the same number for every animal so they could finish quickly and get their money. They also probably haven't thought about this that much and don't have much of a moral theory behind what they're doing. This makes them a different demographic than the people I surveyed, who were a mix of vegetarians and principled non-vegetarians who had thought a lot about animal rights. For example, 80% of my sample answered yes to a question asking if they were "familiar with work by Brian Tomasik, OneStepForAnimals, etc urging people to eat beef rather than chicken". On the other hand, this makes it pretty hard for me to claim my results are some kind of universal intuitive understanding of what animals are like. So I am partially retracting them (only partially, because of the consideration above) and adding this to my Mistakes page. The best thing to do here would be to re-run my survey with a larger sample of a similar population, but unfortunately I've lost my chance to do that now that I've told you all this, so darn. Maybe I'll include it on next year's survey anyway and hope you've forgetten by then.

Mar 31, 20193 min

Ep 176Cortical Neuron Number Matches Intuitive Perceptions of Moral Value Across Animals

[EDIT: No longer confident in this post, see edit note at bottom. May formally partially-retract it later.] Yesterday's post reviewed research showing that animals' intelligence seemed correlated with their number of cortical neurons. If this is true, we could use it to create an absolute scale that puts animals and humans on the same ladder. Here are the numbers from this list. I can't find chickens, so I've used red junglefowl, the wild ancestor of chickens. I can't find cows, so I've eyeballed a number from other cow-sized ruminants (see here for some debate on this). Some animal rights activists discuss the relative value of different species of animal. You have to eat a lot of steak to kill one cow, but you only have to eat a few chicken wings to kill one chicken. This suggests nonvegetarians trying to minimize the moral impact of their diet should eat beef, not chicken. But any calculation like this depends on assumptions about whether one cow and one chicken have similar moral values. Most people would say that they don't – the cow seems intuitively more "human" and capable of suffering – but most people would also say the cow isn't infinitely more valuable. Different animals rights people have come up with different ideas for exactly how we should calculate this. I wondered how people's intuitive ideas about the moral value of animals would correspond to their cortical neuron count. I asked Tumblr users who believed that animals had moral value to fill out a survey (questions, results) estimating the relative value of each animal, in terms of how many animals = 1 human. Fifty people answered, including 21 vegetarians and 29 nonvegetarians. Their numbers ranged from 1 to putting their hand on the 9 key and leaving it there a while, but when I took the median, here's what I got:

Mar 28, 20197 min

Ep 175Neurons and Intelligence: A Birdbrained Perspective

Elephants have bigger brains than humans, so why aren't they smarter than we are? The classic answer has been to play down absolute brain size in favor of brain size relative to body. Sometimes people justify this as "it takes a big brain to control a body that size". But it really doesn't. Elephants have the same number of limbs as mice, operating on about the same mechanical principles. Also, dinosaurs had brains the size of walnuts and did fine. Also, the animal with the highest brain-relative-to-body size is a shrew. The classic answer to that has been to look at a statistic called "encephalization quotient", which compares an animal's brain size to its predicted brain size given an equation that fits most animals. Sometimes people use brain weight = constant x (body weight)^0.66, where the constant varies depending on what kind of animal you're talking about. The encephalization quotient mostly works, but it's kind of a hack. Also, capuchin monkeys have higher EQ than chimps, but are not as smart. Also, some birds have lower encephalization quotients than small mammals, but are much smarter. So although EQ usually does a good job predicting intelligence, it's definitely not perfect, and it doesn't tell us what intelligence is. A new AI Impacts report on animal intelligence, partly based on research by Suzana Herculano-Houzel, starts off here. If we knew what made some animals smarter than others, it might help us figure out what intelligence is in a physiological sense, and that might help us predict the growth of intelligence in future AIs. AII focuses on birds. Some birds are very intelligent: crows can use tools, songbirds seem to have a primitive language, parrots can learn human speech. But birds have tiny brains, whether by absolute standards or EQ. They also have very different brains than mammals: while mammals have a neocortex arranged in a characteristic pattern of layers, birds have a different unlayered structure called the pallium with neurons "organized into nuclei". So bird intelligence is surprising both because of their small brains, and because it suggests high intelligence can arise in brain structures very different from our own.

Mar 27, 201910 min

Ep 174Translating Predictive Coding Into Perceptual Control

Wired wrote a good article about Karl Friston, the neuroscientist whose works I've puzzled over here before. Raviv writes: Friston's free energy principle says that all life…is driven by the same universal imperative…to act in ways that reduce the gulf between your expectations and your sensory inputs. Or, in Fristonian terms, it is to minimize free energy. Put this way, it's clearly just perceptual control theory. Powers describes the same insight like this: [Action] is the difference between some condition of the situation as the subject sees it, and what we might call a reference condition, as he understands it. I'd previously noticed that these theories had some weird similarities. But I want to go further and say they're fundamentally the same paradigm. I don't want to deny that the two theories have developed differently, and I especially don't want to deny that free energy/predictive coding has done great work building in a lot of Bayesian math that perceptual control theory can't match. But the foundations are the same. Why is this of more than historical interest? Because some people (often including me) find free energy/predictive coding very difficult to understand, but find perceptual control theory intuitive. If these are basically the same, then someone who wants to understand free energy can learn perceptual control theory and then a glossary of which concepts match to each other, and save themselves the grief of trying to learn free energy/predictive coding just by reading Friston directly.

Mar 22, 201910 min

Ep 173Book Review: Inventing the Future

They say "don't judge a book by its cover". So in case you were withholding judgment: yes, this bright red book covered with left-wing slogans is, in fact, communist. Inventing The Future isn't technically Nick Srnicek and Alex Williams' manifesto – that would be the equally-striking-looking Accelerate Manifesto. But it's a manifesto-ish description of their plan for achieving a postcapitalist world. S&W start with a critique of what they call "folk politics", eg every stereotype you have of lazy left-wing activists. Protesters who march out and wave signs and then go home with no follow-up plan. Groups that avoid having any internal organization, because organization implies hierarchy and hierarchy is bad. The People's Front of Judaea wasting all their energy warring with the Judaean People's Front. An emphasis on spectacle and performance over results. We've probably all heard stories like this, but some of S&W's are especially good, like one from an activist at a trade summit: On April 20, the first day of the demonstrations, we marched in our thousands toward the fence, behind which 34 heads of state had gathered to hammer out a hemispheric trade deal. Under a hail of catapult-launched teddy bears, activists dressed in black quickly removed the fence's support with bolt cutters and pulled it down with grapples as onlookers cheered them on. For a brief moment, nothing stood between us and the convention centre. We scrambled atop the toppled fence, but for the most part we went no further, as if our intention all along had been simply to replace the state's chain-link and concrete barrier with a human one of our own making. S&W comment: We see here the symbolic and ritualistic nature of the actions, combined with the thrill of having done something – but with a deep uncertainty that appears at the first break with the expected narrative. The role of dutiful protester had given these activists no indication of what to do when the barriers fell. Spectacular political confrontations like the Stop the War marches, the now familiar melees against G20 or World Trade Organization and the rousing scenes of democracy in Occupy Wall Street all give the appearance of being highly significant, as if something were genuinely at stake. Yet nothing has changed, and long-term victories were traded for a simple registration of discontent. To outside observers, it is often not even clear what the movements want, beyond expressing a generalized discontent with the world…in more recent struggles, the very idea of making demands has been questioned. The Occupy movement infamously struggled to articulate meaningful goals, worried that anything too substantial would be divisive. And a broad range of student occupations across the Western world has taken up the mantra of "no demands" under the misguided belief that demanding nothing is a radical act.

Mar 21, 201952 min

Ep 172Gwern's AI-Generated Poetry

Gwern has answered my prayers and taught GPT-2 poetry. GPT-2 is the language processing system that OpenAI announced a few weeks ago. They are keeping the full version secret, but have released a smaller prototype version. Gwern retrained it on the Gutenberg Poetry Corpus, a 117 MB collection of pre-1923 English poetry, to create a specialized poetry AI. I previously tested the out-of-the-box version of GPT-2 and couldn't make it understand rhyme and meter. I wrongly assumed this was a fundamental limitation: "obviously something that has never heard sound can't derive these complex rhythms just from meaningless strings of letters." I was wrong; it just didn't have enough training data. Gwern's retrained version gets both of these right, and more too. For example: Thou know'st how Menoetiades the swift Was dragged, of Hector and the fierce compeers And Phrygian warriors. So, we will dispatch Your bodies, then, yourselves to burn the ships In sacrifice; with torches and with bells To burn them, and with oxen to replace Your gallant friends for ever. But I wish That no man living has so long endured The onset of his foes, as I have power To burn or storm; for mighty Hector erst Was slain, and now returns his safe return This is all perfect iambic pentameter. I know AP English students who can't write iambic pentameter as competently as this. (by the way, both "compeers" and "erst" are perfectly cromulent words from the period when people wrote poems like this; both show up in Shelley) It has more trouble with rhymes – my guess is a lot of the poetry it was trained on was blank verse. But when it decides it should be rhyming, it can keep it up for a little while. From its Elegy Written in a Country Churchyardfanfic:

Mar 17, 201917 min

Ep 171Does Reality Drive Straight Lines on Graphs, or Do Straight Lines on Graphs Drive Reality?

Here's a graph of US air pollution over time: During the discussion of 90s environmentalism, some people pointed out that this showed the Clean Air Act didn't matter. The trend is the same before the Act as after it. This kind of argument is common. For example, here's the libertarian Mercatus Institute arguing that OSHA didn't help workplace safety: I've always taken these arguments pretty seriously. But recently I've gotten more cautious. Here's a graph of Moore's Law, the "rule" that transistor counts will always increase by a certain amount per year: The Moore's Law Wikipedia article lists factors that have helped transistors keep shrinking during that time, for example "the invention of deep UV excimer laser photolithography" in 1980. But if we wanted to be really harsh, we could make a graph like this: But the same argument that disproves the importance of photolithography disproves the importance of anything else. We'd have to retreat to a thousand-coin-flips model where each factor is so small that it happening or not happening at any given time doesn't change the graph in a visible way. The only satisfying counterargument I've heard to this is that Moore's Law comes from a combination of physical law and human commitment. Physical law is consistent with transistors shrinking this quickly. But having noticed this, humans (like the leadership of Intel) commit to achieve it. That commitment functions kind of as a control system. If there's a big advance in one area, they can relax a little bit in other areas. If there's a problem in one area, they'll pour more resources into it until there stops being a problem. One can imagine an event big enough to break the control system – a single unexpected discovery that cuts sizes by a factor of 1000 all on its own, or a quirk of physical law that makes it impossible to fit more transistors on a chip without inventing an entirely new scientific paradigm. But in fact there was no event big enough to break the control system during this period, so the system kept working. But then we have to wonder whether other things like clean air are control systems too. That is, suppose that as the economy improves and stuff, the American people demand cleaner air. They will only be happy if the air is at least 2% cleaner each year than the year before. If one year the air is 10% cleaner than the year before, environmentalist groups get bored and wander off, and there's no more progress for the next five years. But if one year the air is only 1% cleaner, newly-energized environmentalist voters threaten to vote out all the incumbents who contributed to the problem, and politicians pass some emergency measure to make it go down another 1%. So absent some event strong enough to overwhelm the system, air pollution will always go down 2% per year. But that doesn't mean the Clean Air Act didn't change things! The Clean Air Act was part of the toolkit that the control system used to keep the decline at 2%. If the Clean Air Act had never happened, the control system would have figured out some other way to keep air pollution low, but that doesn't mean the Clean Air Act didn't matter. Just that it mattered exactly as much as whatever it would have been replaced with.

Mar 15, 20197 min

Ep 170Puritan Spotting

[Related to: Book Review: Albion's Seed] [Epistemic status: Not too serious] I realize I've been confusing everyone with my use of the word "Puritan". When I say "That guy is so Puritan!" people object "But he's not religious!" or "He doesn't hate fun!" I don't know what the real word for the category I'm calling "Puritan" is. Words like "Yankee", "Boston Brahmin", or "Transcendentalist" are close, but none of them really work. "Eccentric overeducated hypercompetent contrarian early American who takes morality very seriously" is good, but too long. Instead of explaining further, here's a (more than half-joking) Puritan checklist. Maximum one item per red box. The obvious next step is to rank historical figures by Puritanism Points. Here are the top five famous Americans I can find, as per Wikipedia: #5: SAMUEL MORSE Samuel Morse was born to Pastor (+3) Jedediah (+1) Morse and his wife Elizabeth (+1) in Charlestown, Massachusetts (+3), the eldest of six children (+3). After attending Yale (+1), he pursued a career as an internationally famous painter. But when his wife Lucretia (+1) fell sick, he was unable to receive the news in time to go home to her before she died, inspiring him to change careers during mid-life (+3) and become an inventor. He spent his life perfecting the telegraph (+1), but also invented an automatic sculpture-making machine (+3). In later life, he switched careers again, becoming an anti-Catholic activist (+1); he ran for Mayor of New York on an anti-Catholic platform, and wrote anti-Catholic pamphlets like A Foreign Conspiracy Against The Liberties Of The United States (+1). He was also a well-known philanthropist (+3). His hairstyle looked like this (+3). Total Puritanism = 28

Mar 14, 201917 min

Ep 169Book Review: Albion's Seed [Classic]

I. Albion's Seed by David Fischer is a history professor's nine-hundred-page treatise on patterns of early immigration to the Eastern United States. It's not light reading and not the sort of thing I would normally pick up. I read it anyway on the advice of people who kept telling me it explains everything about America. And it sort of does. In school, we tend to think of the original American colonists as "Englishmen", a maximally non-diverse group who form the background for all of the diversity and ethnic conflict to come later. Fischer's thesis is the opposite. Different parts of the country were settled by very different groups of Englishmen with different regional backgrounds, religions, social classes, and philosophies. The colonization process essentially extracted a single stratum of English society, isolated it from all the others, and then plunked it down on its own somewhere in the Eastern US. I used to play Alpha Centauri, a computer game about the colonization of its namesake star system. One of the dynamics that made it so interesting was its backstory, where a Puerto Rican survivalist, an African plutocrat, and other colorful characters organized their own colonial expeditions and competed to seize territory and resources. You got to explore not only the settlement of a new world, but the settlement of a new world by societies dominated by extreme founder effects. What kind of weird pathologies and wonderful innovations do you get when a group of overly romantic Scottish environmentalists is allowed to develop on its own trajectory free of all non-overly-romantic-Scottish-environmentalist influences? Albion's Seed argues that this is basically the process that formed several early US states. Fischer describes four of these migrations: the Puritans to New England in the 1620s, the Cavaliers to Virginia in the 1640s, the Quakers to Pennsylvania in the 1670s, and the Borderers to Appalachia in the 1700s. II. A: The Puritans I hear about these people every Thanksgiving, then never think about them again for the next 364 days. They were a Calvinist sect that dissented against the Church of England and followed their own brand of dour, industrious, fun-hating Christianity. Most of them were from East Anglia, the part of England just northeast of London. They came to America partly because they felt persecuted, but mostly because they thought England was full of sin and they were at risk of absorbing the sin by osmosis if they didn't get away quick and build something better. They really liked "city on a hill" metaphors. I knew about the Mayflower, I knew about the black hats and silly shoes, I even knew about the time Squanto threatened to release a bioweapon buried under Plymouth Rock that would bring about the apocalypse. But I didn't know that the Puritan migration to America was basically a eugenicist's wet dream. Much like eg Unitarians today, the Puritans were a religious group that drew disproportionately from the most educated and education-obsessed parts of the English populace. Literacy among immigrants to Massachusetts was twice as high as the English average, and in an age when the vast majority of Europeans were farmers most immigrants to Massachusetts were skilled craftsmen or scholars. And the Puritan "homeland" of East Anglia was a an unusually intellectual place, with strong influences from Dutch and Continental trade; historian Havelock Ellis finds that it "accounts for a much larger proportion of literary, scientific, and intellectual achievement than any other part of England." Furthermore, only the best Puritans were allowed to go to Massachusetts; Fischer writes that "it may have been the only English colony that required some of its immigrants to submit letters of recommendation" and that "those who did not fit in were banished to other colonies and sent back to England". Puritan "headhunters" went back to England to recruit "godly men" and "honest men" who "must not be of the poorer sort".

Mar 13, 20191h 10m

Ep 168Ketamine: Now by Prescription

Last week the FDA approved esketamine for treatment-resistant depression. Let's review how the pharmaceutical industry works: a company discovers and patents a potentially exciting new drug. They spend tens of millions of dollars proving safety and efficacy to the FDA. The FDA rewards them with a 10ish year monopoly on the drug, during which they can charge whatever ridiculous price they want. This isn't a great system, but at least we get new medicines sometimes. Occasionally people discover that an existing chemical treats an illness, without the chemical having been discovered and patented by a pharmaceutical company. In this case, whoever spends tens of millions of dollars proving it works to the FDA may not get a monopoly on the drug and the right to sell it for ridiculous prices. So nobody spends tens of millions of dollars proving it works to the FDA, and so it risks never getting approved. The usual solution is for some pharma company to make some tiny irrelevant change to the existing chemical, and patent this new chemical as an "exciting discovery" they just made. Everyone goes along with the ruse, the company spends tens of millions of dollars pushing it through FDA trials, it gets approved, and they charge ridiculous prices for ten years. I wouldn't quite call this "the system works", but again, at least we get new medicines. Twenty years ago, people noticed that ketamine treated depression. Alas, ketamine already existed – it's an anaesthetic and a popular recreational drug – so pharma companies couldn't patent it and fund FDA trials, so it couldn't get approved by the FDA for depression. A few renegade doctors started setting up ketamine clinics, where they used the existing approval of ketamine for anaesthesia as an excuse to give it to depressed people. But because this indication was not FDA-approved, insurance companies didn't have to cover it. This created a really embarrassing situation for the medical system: everyone secretly knows ketamine is one of the most effective antidepressants, but officially it's not an antidepressant at all, and mainstream providers won't give it to you. The pharmaceutical industry has lobbyists in Heaven. Does this surprise you? Of course they do. A Power bribed here, a Principality flattered there, and eventually their petitions reach the ears of God Himself. This is the only possible explanation for stereochemistry, a quirk of nature where many organic chemicals come in "left-handed" and "right-handed" versions. The details don't matter, beyond that if you have a chemical that you can't patent, you can take the left-handed (or right-handed) version, and legally pretend that now it is a different chemical which you can patent. And so we got "esketamine".

Mar 12, 201914 min

Ep 167Prospiracy Theories

[Title from this unrelated story or this unrelated essay] Last week I wrote about how conspiracy theories spread so much faster on Facebook than debunkings of those same theories. A few commenters chimed in to say that of course this was true, the conspiracy theories had evolved into an almost-perfect form for exploiting cognitive biases and the pressures of social media. Debunkings and true beliefs couldn't copy that process, so they were losing out. This sounded like a challenge, so here you go:

Mar 6, 20199 min

Ep 166Meaningful

[With apologies to Putnam, Pope, and all of you] Two children are reading a text written by an AI: The hobbits splashed water in each other's faces until they were both sopping wet One child says to the other "Wow! After reading some text, the AI understands what water is!" The second child says "It doesn't really understand." The first child says "Sure it does! It understands that water is the sort of substance that splashes. It understands that people who are splashed with water get wet. What else is left to understand?" The second child says "All it understands is relationships between words. None of the words connect to reality. It doesn't have any internal concept of what water looks like or how it feels to be wet. Only that the letters W-A-T-E-R, when appearing near the letters S-P-L-A-S-H bear a certain statistical relationship to the letters W-E-T." The first child starts to cry. Two chemists are watching the children argue with each other. The first chemist says "Wow! After seeing an AI, these kids can debate the nature of water!" The second chemist says "Ironic, isn't it? After all, the children themselves don't understand what water is! Water is two hydrogen atoms plus one oxygen atom, and neither of them know!" The first chemist answers "Come on. The child knows enough about water to say she understands it. She knows what it looks like. She knows what it tastes like. That's pretty much the basics of water." The second chemist answers "Those are just relationships between pieces of sense-data. The child knows that (visual perception of clear shiny thing) = (tactile perception of cold wetness) = (gustatory perception of refreshingness). And she can predict statistical relationships, like that if she sees someone throw a bucket of (visual perception of clear shiny thing) at her, she will soon feel (tactile perception of cold miserable sopping wetness). She uses the word "water" as a concept-hook that links all of these relationships together and makes predicting the world much easier. But no matter how well she masters these facts, she can never connect them to H2O or any other real chemical facts about the world beyond mere sense-data."

Mar 2, 20196 min

Ep 165In Mod We Trust

The Verge writes a story (an exposé?) on the Facebook-moderation industry. It goes through the standard ways it maltreats its employees: low pay, limited bathroom breaks, awful managers – and then into some not-so-standard ones. Mods have to read (or watch) all of the worst things people post on Facebook, from conspiracy theories to snuff videos. The story talks about the psychological trauma this inflicts: It's an environment where workers cope by telling dark jokes about committing suicide, then smoke weed during breaks to numb their emotions…where employees, desperate for a dopamine rush amid the misery, have been found having sex inside stairwells and a room reserved for lactating mothers… It's a place where the conspiracy videos and memes that they see each day gradually lead them to embrace fringe views. One auditor walks the floor promoting the idea that the Earth is flat. A former employee told me he has begun to question certain aspects of the Holocaust. Another former employee, who told me he has mapped every escape route out of his house and sleeps with a gun at his side, said: "I no longer believe 9/11 was a terrorist attack. One of the commenters on Reddit asked "Has this guy ever worked in a restaurant?" and, uh, fair. I don't want to speculate on how much weed-smoking or sex-in-stairwell-having is due to a psychological reaction to the trauma of awful Facebook material vs. ordinary shenanigans. But it sure does seem traumatic. Other than that, the article caught my attention for a few reasons. First, because I recently wrote a post that was a little dismissive of moderators, and made it sound like an easy problem. I think the version I described – moderation of a single website's text-only comment section – is an easi-er problem than moderating all of Facebook and whatever horrible snuff videos people post there. But if any Facebook moderators, or anyone else in a similar situation, read that post and thought I was selling them short, I'm sorry.

Mar 1, 201913 min

Ep 164Rule Thinkers In, Not Out

Imagine a black box which, when you pressed a button, would generate a scientific hypothesis. 50% of its hypotheses are false; 50% are true hypotheses as game-changing and elegant as relativity. Even despite the error rate, it's easy to see this box would quickly surpass space capsules, da Vinci paintings, and printer ink cartridges to become the most valuable object in the world. Scientific progress on demand, and all you have to do is test some stuff to see if it's true? I don't want to devalue experimentalists. They do great work. But it's appropriate that Einstein is more famous than Eddington. If you took away Eddington, someone else would have tested relativity; the bottleneck is in Einsteins. Einstein-in-a-box at the cost of requiring two Eddingtons per insight is a heck of a deal. What if the box had only a 10% success rate? A 1% success rate? My guess is: still most valuable object in the world. Even an 0.1% success rate seems pretty good, considering (what if we ask the box for cancer cures, then test them all on lab rats and volunteers?) You have to go pretty low before the box stops being great. I thought about this after reading this list of geniuses with terrible ideas. Linus Pauling thought Vitamin C cured everything. Isaac Newton spent half his time working on weird Bible codes. Nikola Tesla pursued mad energy beams that couldn't work. Lynn Margulis revolutionized cell biology by discovering mitochondrial endosymbiosis, but was also a 9-11 truther and doubted HIV caused AIDS. Et cetera. Obviously this should happen. Genius often involves coming up with an outrageous idea contrary to conventional wisdom and pursuing it obsessively despite naysayers. But nobody can have a 100% success rate. People who do this successfully sometimes should also fail at it sometimes, just because they're the kind of person who attempts it at all. Not everyone fails. Einstein seems to have batted a perfect 1000 (unless you count his support for socialism). But failure shouldn't surprise us.

Feb 28, 20199 min

Ep 163Wage Stagnation: Much More Than You Wanted to Know

[Epistemic status: I am basing this on widely-accepted published research, but I can't guarantee I've understood the research right or managed to emphasize/believe the right people. Some light editing to bring in important points people raised in the comments.] You all know this graph: Median wages tracked productivity until 1973, then stopped. Productivity kept growing, but wages remained stagnant. This is called "wage decoupling". Sometimes people talk about wages decoupling from GDP, or from GDP per capita, but it all works out pretty much the same way. Increasing growth no longer produces increasing wages for ordinary workers. Is this true? If so, why? 1. What Does The Story Look Like Across Other Countries And Time Periods? Here's a broader look, from 1800 on: It no longer seems like a law of nature that productivity and wages are coupled before 1973. They seem to uncouple and recouple several times, with all the previous graphs' starting point in 1950 being a period of unusual coupledness. Still, the modern uncoupling seems much bigger than anything that's happened before. What about other countries? This graph is for the UK (you can tell because it spells "labor" as "labour") It looks similar, except that the decoupling starts around 1990 instead of around 1973. And here's Europe: This is only from 1999 on, so it's not that helpful. But it does show that even in this short period, France remains coupled, Germany is decoupled, Spain is…doing whatever Spain is doing, and Italy is so pathetic that the problem never even comes up. Overall not sure what to think about these. 2. Could Apparent Wage Decoupling Be Because Of Health Insurance? Along with wages, workers are compensated in benefits like health insurance. Since health insurance has skyrocketed in price, this means total worker compensation has gone up much more than wages have. This could mean workers are really getting compensated much more, even though they're being paid the same amount of money. This view has sometimes been associated with economist Glenn Hubbard. There are a few lines of argument that suggest it's not true. First, wage growth has been worst for the lowest-paid workers. But the lowest-paid workers don't usually get insurance at all.

Feb 28, 201952 min

Ep 162RIP Culture War Thread

[This post is having major technical issues. Some comments may not be appearing. If you can't comment, please say so on the subreddit.] I. I Come To Praise Caesar, Not To Bury Him Several years ago, an SSC reader made an r/slatestarcodex subreddit for discussion of blog posts here and related topics. As per the usual process, the topics that generated the strongest emotions – Trump, gender, race, the communist menace, the fascist menace, etc – started taking over. The moderators (and I had been added as an honorary mod at the time) decreed that all discussion of these topics should be corralled into one thread so that nobody had to read them unless they really wanted to. This achieved its desired goal: most of the subreddit went back to being about cognitive science and medicine and other less-polarizing stuff. Unexpectedly, the restriction to one thread kick-started the culture war discussions rather than toning them down. The thread started getting thousands of comments per week, some from people who had never even heard of this blog and had just wandered in from elsewhere on Reddit. It became its own community, with different norms and different members from the rest of the board. I expected this to go badly. It kind of did; no politics discussion area ever goes really well. There were some of the usual flame wars, point-scoring, and fanatics. I will be honest and admit I rarely read the thread myself. But in between all of that, there was some really impressive analysis, some good discussion, and even a few changed minds. Some testimonials from participants: For all its awfulness there really is something special about the CW thread. There are conversations that have happened there that cannot be replicated elsewhere. Someone mentioned its accidental brilliance and I think that's right—it catches a wonderful conversational quality I've never seen on the Internet, and I've been on the Internet since the 90s – werttrew I feel that, while practically ever criticism of the CW thread I have ever read is true, it is still the best and most civil culture war-related forum for conversation I have seen. And I find the best-of roundup an absolute must-read every week – yrrosimyarin

Feb 23, 201940 min

Ep 161My Plagiarism

I was going back over yesterday's post, and something sounded familiar about this paragraph: A very careless plagiarist takes someone else's work and copies it verbatim: "The mitochondria is the powerhouse of the cell". A more careful plagiarist takes the work and changes a few words around: "The mitochondria is the energy dynamo of the cell". A plagiarist who is more careful still changes the entire sentence structure: "In cells, mitochondria are the energy dynamos". The most careful plagiarists change everything except the underlying concept, which they grasp at so deep a level that they can put it in whatever words they want – at which point it is no longer called plagiarism. After rereading it a few times, it hit me. A few days ago, I'd come across this quote from Miss Manners: There are three possible parts to a date, of which at least two must be offered: entertainment, food, and affection. It is customary to begin a series of dates with a great deal of entertainment, a moderate amount of food, and the merest suggestion of affection. As the amount of affection increases, the entertainment can be reduced proportionately. When the affection IS the entertainment, we no longer call it dating. I laughed at it, I thought it was great, and I stored it in my head as the sort of thing I should quote at some point in order to sound witty. And although I wasn't consciously thinking about it at the time, I'm sure the last sentence of my paragraph comes from the last sentence of Miss Manners'. It would be easy to dismiss it as a coincidence, it probably seems like a coincidence to you, I can't explain how I know that the one comes from the other, but when I replay in my mind the process that made me write that, it's obvious that it did.

Feb 22, 20194 min

Ep 160GPT-2 as Step Toward General Intelligence

A machine learning researcher writes me in response to yesterday's post, saying: I still think GPT-2 is a brute-force statistical pattern matcher which blends up the internet and gives you back a slightly unappetizing slurry of it when asked. I resisted the urge to answer "Yeah, well, your mom is a brute-force statistical pattern matcher which blends up the internet and gives you back a slightly unappetizing slurry of it when asked." But I think it would have been true. A very careless plagiarist takes someone else's work and copies it verbatim: "The mitochondria is the powerhouse of the cell". A more careful plagiarist takes the work and changes a few words around: "The mitochondria is the energy dynamo of the cell". A plagiarist who is more careful still changes the entire sentence structure: "In cells, mitochondria are the energy dynamos". The most careful plagiarists change everything except the underlying concept, which they grasp at so deep a level that they can put it in whatever words they want – at which point it is no longer called plagiarism. GPT-2 writes fantasy battle scenes by reading a million human-written fantasy battle scenes, distilling them down to the concept of a fantasy battle scene, and then building it back up from there. I think this is how your mom (and everyone else) does it too. GPT-2 is worse at this, because it's not as powerful as your mom's brain. But I don't think it's doing a different thing. We're all blending experience into a slurry; the difference is how finely we blend it.

Feb 21, 201927 min

Ep 159Do Neural Nets Dream of Electric Hobbits?

Last week OpenAI announced its latest breakthrough. GPT-2 is a language model that can write essays to a prompt, answer questions, and summarize longer works. For example (bold prompt is human-written, all other text is the machine-generated response): Prompt: For today's homework assignment, please describe the reasons for the US Civil War. It is easy to identify why the Civil War happened, because so many people and so many books and so much television and films tell us that it was the cause, that it has something to do with race or economics or religion. There is much agreement that it was essentially a war of slavery on behalf of capitalism, about a century of slavery. But that's not what most people think of when they think of the Civil War. Many people think of the war as about states rights. You're not wrong about that, but it's kind of misleading to say that the Civil War was a conflict between states' rights and federalism. So let's try again. What's the idea that has inspired so many people to go onto the battlefields of Gettysburg and Antietam and Gettysberg and Petersburg and Fredericksburg? The American idea of the republic–a notion of limited government–is a great part of the history. In 1791, Thomas Jefferson said "Our Constitution was made only for a moral and religious people. It is wholly inadequate to the government of any other." The "founding fathers" were basically religious men who were not very concerned with states' rights. The Civil War occurred in reaction to the idea that the federal government was taking far too much power away from the states, that they weren't sovereign. Jefferson himself, as you well know, is an author of the Declaration of Independence who had some really crazy ideas about, well, you know, secession for a variety of reasons. The War Between the States (later the Great Rebellion) was a radical re-imagining of the American idea and not surprisingly, Jefferson's grandson, who took after both his father and his grandfather and wrote about it, was named Thomas, after the president. "The federal and state governments are both contrived for the benefit of the rich and large property," This view of the Founding Fathers has been promoted by some of today's most prominent politicians, including some who hold prominent national offices and have a direct stake in a Republican Party that has been hijacked by the "federalist" wing of the party. So why is it that so many people have an easy-to-spot way of understanding the Civil War that has everything to do with the South and nothing to do with the South? The Confederate flag has been a symbol of racism for a long time, but when the Civil War started and the Civil War ended, many people suddenly began to see it differently. There was a change of heart, which I think is what led people to take the question of why the Civil War happened quite seriously… Although OpenAI calls this a "language model", modeling language necessarily involves modeling the world. Even if the AI was only supposed to learn things like "texts that talk about the Civil War use the word 'Confederate' a lot", that has flowered into a rudimentary understanding of how the Civil War worked. Its training corpus (8 million web pages) was large enough that in the course of learning language it learned the specific idiom and structure of all sorts of different genres and subtopics. For example:

Feb 21, 201916 min

Ep 158The Proverbial Murder Mystery

I. Chefs. Hundreds of them. Tall chefs, short chefs, black chefs, white chefs. I pushed forward through them, like an explorer hacking away at undergrowth. They muttered curses at me, but I was stronger than they were. I came to a door. I opened it. Sweet empty space. I shut the door behind me, sat down in the chair. "Hello," I said. "Detective Paul Eastman, pleased to make your acquaintance." "Doctor Zachary LaShay," said the man behind the desk. His little remaining hair was greying; his eyes showed hints of the intellect that had been buried beneath the dullness of an administrative career. "I hope you didn't have any trouble getting here. Did my secretary warn you about the chefs?" "She did not," I said. "Well, forewarned is forearmed," he answered, inanely and incongruously. "But I trust you got my message about the federal investigators?" "Once a federal investigation has started, we'll retreat and let them take over. But two women died here. We can't just not investigate because you tell us you're trying to get the Feds involved." "Yes, ah, of course. It's just that we're a sort of, ah, defense contractor. None of our projects are officially classified, yet, but we were hoping to get someone with a security clearance, in case this touched on sensitive areas." "I won't pry further than I have to, but until someone from the government says something official, this is a matter for city police. Maybe you could start by telling me more about exactly what you do here." "We're the United States' only proverb laboratory. Our mission is to stress-test the nation's proverbs. To provide rigorous backing for the good ones, and weed out the bad ones." "I'd never even heard of your organization before today, I have to admit. And now that I'm here…it's huge! Who pays for all of this?" "Everybody who uses proverbs," said the Doctor, "which is to say, everybody. Consider: he who hesitates is lost. But also: look before you leap. Suppose you're a business executive who spots a time-limited opportunity. What do you do? Hesitate? Or leap without looking? Eggheads devise all sorts of fancy rules about timing the market and relying on studies, but when push comes to shove most people are going to rely on the simple sayings they learned as a child. If you can keep your stock of proverbs more up-to-date than your competitor's, that gives you a big business advantage." A smartly-dressed woman came in, handed Dr. LaShay a cup of boiling liquid. He put it to his lips, then spat. "This is terrible!" he said. "Try it!" I had been expecting it to be tea, but it wasn't. I didn't know what it was. But it was terrible. Somehow too plain, too salty, and too bitter all at once. I gagged. "That settles it!" said the Doctor. "Too many cooks really do spoil the broth. Tricia, tell the chefs they can all go home now." "So that's what you were doing!" I said.

Feb 16, 201944 min

Ep 157Survey Results on SSRIs

SSRIs are the most widely used class of psychiatric medications, helpful for depression, anxiety, OCD, panic, PTSD, anger, and certain personality disorders (Why should the same drug treat all these things? Great question!) They've been pretty thoroughly studied, but there's still a lot we don't understand about them. The SSC Survey is less rigorous than most existing studies, but its many questions and very high sample size provide a different tool to investigate some of these issues. I asked fifteen questions about SSRIs on the most recent survey and received answers from 2,090 people who had been on SSRIs. The sample included people on all six major SSRIs, but there were too few people on fluvoxamine (15) to have reliable results, so it was not included in most comparisons. Here's what we found: 1. Do SSRIs work? People seem to think so: Made me feel much worse: 6% Made me feel slightly worse: 7.4% No net change in how I felt: 23.7% Made me feel slightly better: 41.4% Made me feel much better: 21.4% Of course, these statistics include the placebo effect and so cannot be taken entirely at face value. 2. Do some SSRIs work better than others? I asked people to rate their experience with the medication, on a scale from 1 to 10. Here were the results: Lexapro (356): 5.7 Zoloft (470): 5.6 Prozac (339): 5.5 Celexa (233): 5.4 Paxil (126): 4.6 Paxil differed significantly from the others; the others did not differ significantly among themselves. In a second question where participants were just asked to rate their SSRIs from -2 ("made me feel much worse") to +2 ("made me feel much better"), the ranking was preserved, and Lexapro also separated from Celexa. This ranking correlates at r = 0.98 (!?!) with my previous study of this taken from drugs.com ratings. I don't generally hear that Paxil is less effective than other SSRIs, but I have heard that it causes worse side effects. The survey question (probably wrongly) encouraged people to rate side effects as "negative efficacy". My guess is that the difference here is mostly driven by side effects.

Feb 9, 201913 min

Ep 156Respectability Cascades

I. I don't know much about gay history, but the heavily mythicized version of it I heard goes like this: At first open homosexuality was totally taboo. A few groups of respectable people with hilariously upper-class names like The Mattachine Society and The Daughters Of Bilitis quietly tried to influence elites in favor of more tolerance, using whatever backchannels elites use to influence one another. They had limited success, but they comforted themselves that at least they were presenting a likeable and respectable face for homosexuality that was improving the lifestyle's public reputation. Then a few totally-non-respectable outsiders with nothing to lose – addicts, drag queens, men with lots of chest hair who dressed in leather and called themselves "bears" – publicly came out as gay, held pride parades, shouted things about "WE'RE HERE, WE'RE QUEER", et cetera. They were very easy to dislike and most people easily disliked them. But once they did this enough, people who were maybe 10% of the way to being respectable – people not addicted to quite so many drugs, men without quite so much chest hair – felt comfortable joining in. Once enough of them were out, people who were 20% of the way to being respectable felt comfortable coming out, and so on. Then 30% respectable people, then 40% respectable people, all the way up to the present day where there are a bunch of openly gay members of Congress. I know there are lots of debates over whether this kind of "respectability cascade" is the way it really happened, but it's a neat model of a way that these things can happen. II. And it's especially interesting because it's the opposite of the way I usually think about these things. When I did pre-med in college, I learned physiology from a distinguished professor whose focus was herpetology – the study of reptiles and amphibians. His pet issue was endocrine disruption – hormone-like pollutants that were changing the sexual maturation of frogs and other animals, and which were suspected to have deleterious effects on humans. He made us read a bunch of papers on this, all of which demonstrated a clear scientific consensus that this was a well-known environmental problem and all the respectable environmentalists and herpetologists were concerned about it. After college I went about a decade without thinking about it. Then people started making fun of Alex Jones' CHEMICALZ R TURNING TEH FROGZ GAY!!! shtick. I innocently said that this was definitely happening and definitely deserved our concern, and discovered that this was no longer an acceptable thing to talk about in the Year Of Our Lord Two Thousand And Whatever. Okay. Lesson learned.

Feb 7, 201912 min

Ep 155Book Review: Zero to One

I. Zero To One might be the first best-selling business book based on a Tumblr. Stanford student Blake Masters took Peter Thiel's class on startups. He posted his notes on Tumblr after each lecture. They became a minor sensation. Thiel asked if he wanted to make them into a book together. He did. The title comes from Thiel's metaphor that ordinary businessmen like restaurant owners take a product "from 1 to n" (shouldn't this be from n to n+1?) – they build more of something that already exists. But the greatest entrepreneurs bring something "from 0 to 1" – they invent something that has never been seen before. The book has various pieces of advice for such entrepreneurs. Three sections especially struck me: on monopolies, on secrets, and on indefinite optimism. II. A short review can't fully do justice to the book's treatment of monopolies. Gwern's look at commoditizing your complement almost does (as do some tweets). But the basic economic argument goes like this: In a normal industry (eg restaurant ownership) competition should drive profit margins close to zero. Want to open an Indian restaurant in Mountain View? There will be another on the same street, and two more just down the way. If you automate every process that can be automated, mercilessly pursue efficiency, and work yourself and your employees to the bone – then you can just barely compete on price. You can earn enough money to live, and to not immediately give up in disgust and go into another line of business (after all, if you didn't earn that much, your competitors would already have given up in disgust and gone into another line of business, and your task would be easier). But the average Indian restaurant is in an economic state of nature, and its life will be nasty, brutish, and short. This was the promise of the classical economists: capitalism will optimize for consumer convenience, while keeping businesses themselves lean and hungry. And it was Marx's warning: businesses will compete so viciously that nobody will get any money, and eventually even the capitalists themselves will long for something better. Neither the promise nor the warning has been borne out: business owners are often comfortable and sometimes rich. Why? Because they've escaped competition and become at least a little monopoly-like. Thiel says this is what entrepreneurs should be aiming for. He hates having to describe how businesses succeed, because he thinks it's too anti-inductive to reduce to a formula: Tolstoy opens Anna Karenina by observing "All happy families are alike; each unhappy family is unhappy in its own way." Business is the opposite. All happy companies are different: each one earns a monopoly by solving a unique problem. All failed companies are the same: they failed to escape competition. But he grudgingly describes four ways that a company can successfully reach monopolyhood:

Feb 2, 201942 min

Ep 154Predictions for 2019

At the beginning of every year, I make predictions. At the end of every year, I score them. So here are a hundred more for 2019. Rules: all predictions about what will be true on January 1, 2020. Any that involve polling will be settled by the top poll or average of polls on Real Clear Politics on that day. Most predictions about my personal life, or that refer to the personal lives of other people, have been redacted to protect their privacy. I'm using the full 0 – 100 range in making predictions this year, but they'll be flipped and judged as 50 – 100 in the rating stage, just like in previous years. I've tried to avoid doing specific research or looking at prediction markets when I made these, though some of them I already knew what the markets said. Feel free to get in a big fight over whether 50% predictions are meaningful. US 1. Donald Trump remains President: 90% 2. Donald Trump is impeached by the House: 40% 3. Kamala Harris leads the Democratic field: 20% 4. Bernie Sanders leads the Democratic field: 20% 5. Joe Biden leads the Democratic field: 20% 6. Beto O'Rourke leads the Democratic field: 20% 7. Trump is still leading in prediction markets to be Republican nominee: 70% 8. Polls show more people support the leading Democrat than the leading Republican: 80% 9. Trump's approval rating below 50: 90% 10. Trump's approval rating below 40: 50% 11. Current government shutdown ends before Feb 1: 40% 12. Current government shutdown ends before Mar 1: 80% 13. Current government shutdown ends before Apr 1: 95% 14. Trump gets at least half the wall funding he wants from current shutdown: 20% 15. Ginsberg still alive: 50%

Jan 26, 201913 min

Ep 153Psychiat-List Now Up

Lots of people have asked me to recommend them a psychiatrist or therapist. I've done a terrible job responding: it's a conflict of interest to recommend my own group, and I don't know many people outside of it. So now I've put together a list (by which I mostly mean blatantly copied a similar list made by fellow community member Anisha M) of mental health professionals whom members of the rationalist community have had good experiences with. So far it's short and mostly limited to the Bay Area. You can find it at the "Psychiat-List" button on the top of the blog, or at this link. My hope is to crowd-source additional recommendations to expand the list to more providers and cities. Please let me know, either on this post or on the comments to the list itself, if you have any extra recommendations to add – especially if you're in a city likely to have many other SSC readers. Please also let me know if you've had any positive or negative experiences with people already on the list, so I can change their status accordingly.

Jan 25, 20192 min

Ep 1522018 Predictions: Calibration Results

At the beginning of every year, I make predictions. At the end of every year, I score them. Here are 2014, 2015, 2016, and 2017. And here are the predictions I made for 2018. Strikethrough'd are false. Intact are true. Italicized are getting thrown out because I can't decide if they're true or not. Please don't complain that 50% predictions don't mean anything; I know this is true but there are some things I'm genuinely 50-50 unsure of. US: 1. Donald Trump remains president at end of year: 95% 2. Democrats take control of the House in midterms: 80% 3. Democrats take control of the Senate in midterms: 50% 4. Mueller's investigation gets cancelled (eg Trump fires him): 50% 5. Mueller does not indict Trump: 70% 6. PredictIt shows Bernie Sanders having highest chance to be Dem nominee at end of year: 60% 7. PredictIt shows Donald Trump having highest chance to be GOP nominee at end of year: 95% 8. [This was missing in original] 9. Some sort of major immigration reform legislation gets passed: 70% 10. No major health-care reform legislation gets passed: 95% 11. No large-scale deportation of Dreamers: 90% 12. US government shuts down again sometime in 2018: 50% 13. Trump's approval rating lower than 50% at end of year: 90% 14. …lower than 40%: 50% 15. GLAAD poll suggesting that LGBQ acceptance is down will mostly not be borne out by further research: 80%

Jan 24, 201920 min

Ep 151Highlights from the Comments on Kuhn

Thanks to everyone who commented on the review of The Structure Of Scientific Revolutions. From David Chapman: It's important to remember that Kuhn wrote this seven decades ago. It was one of the most influential books of pop philosophy in the 1960s-70s, influencing the counterculture of the time, so it is very much "in the water supply." Much of what's right in it is now obvious; what's wrong is salient. To make sense of the book, you have to understand the state of the philosophy of science before then (logical positivism had just conclusively failed), and since then (there has been a lot of progress since Kuhn, sorting out what he got right and wrong). The issue of his relativism and attitude to objectivity has been endlessly rehashed. The discussion hasn't been very productive; it turns out that what "objective" means is more subtle than you'd think, and it's hard to sort out exactly what Kuhn thought. (And it hasn't mattered what he thought, for a long time.) Kuhn's "Postscript" to the second edition of the book does address this. It's not super clear, but it's much clearer than the book itself, and if anyone wants to read the book, I would strongly recommend reading the Postscript as well. Given Scott's excellent summary, in fact I would suggest *starting* with the Postscript. The point that Kuhn keeps re-using a handful of atypical examples is an important one (which has been made by many historians and philosophers of science since). In fact, the whole "revolutionary paradigm shift" paradigm seems quite rare outside the examples he cites. And, overall, most sciences work quite differently from fundamental physics. The major advance in meta-science from about 1980 to 2000, imo, was realizing that molecular biology, e.g., works so differently from fundamental physics that trying to subsume both under one theory of science is infeasible. I'm interested to hear him say more about that last sentence if he wants. Kaj Sotala quotes Steven Horst quoting Thomas Kuhn on what he means by facts not existing independently of paradigms: [Kuhn wrote that]: A historian reading an out-of-date scientific text characteristically encounters passages that make no sense. That is an experience I have had repeatedly whether my subject is an Aristotle, a Newton, a Volta, a Bohr, or a Planck. It has been standard to ignore such passages or to dismiss them as products of error, ignorance, or superstition, and that response is occasionally appropriate. More often, however, sympathetic contemplation of the troublesome passages suggests a different diagnosis. The apparent textual anomalies are artifacts, products of misreading. For lack of an alternative, the historian has been understanding words and phrases in the text as he or she would if they had occurred in contemporary discourse. Through much of the text that way of reading proceeds without difficulty; most terms in the historian's vocabulary are still used as they were by the author of the text. But some sets of interrelated terms are not, and it is [the] failure to isolate those terms and to discover how they were used that has permitted the passages in question to seem anomalous. Apparent anomaly is thus ordinarily evidence of the need for local adjustment of the lexicon, and it often provides clues to the nature of that adjustment as well. An important clue to problems in reading Aristotle's physics is provided by the discovery that the term translated 'motion' in his text refers not simply to change of position but to all changes characterized by two end points. Similar difficulties in reading Planck's early papers begin to dissolve with the discovery that, for Planck before 1907, 'the energy element hv' referred, not to a physically indivisible atom of energy (later to be called 'the energy quantum') but to a mental subdivision of the energy continuum, any point on which could be physically occupied. These examples all turn out to involve more than mere changes in the use of terms, thus illustrating what I had in mind years ago when speaking of the "incommensurability" of successive scientific theories. In its original mathematical use 'incommensurability' meant "no common measure," for example of the hypotenuse and side of an isosceles right triangle. Applied to a pair of theories in the same historical line, the term meant that there was no common language into which both could be fully translated. (Kuhn 1989/2000, 9–10) While scientific theories employ terms used more generally in ordinary language, and the same term may appear in multiple theories, key theoretical terminology is proprietary to the theory and cannot be understood apart from it. To learn a new theory, one must master the terminology as a whole: "Many of the referring terms of at least scientific languages cannot be acquired or defined one at a time but must instead be learned in clusters" (Kuhn 1983/2000, 211). And as the meanings of the terms and the connections between them differ from theory to

Jan 20, 201942 min

Ep 150Kernel of Doubt: Testing Math Preference vs. Corn-Eating Style

In 2010, Ben Tilly of the blog Random Observations wrote Analysis Vs. Algebra Predicts Eating Corn?, which said: I like learning about odd connections between disparate things. This probably is the oddest example that I know. Broadly speaking, mathematicians can be divided into those who like analysis, and those who like algebra. The distinction between the two types runs throughout math. Even those who work in areas that are far from analysis or algebra are very aware of the difference between them, and usually are very clear on which their preference is. I'll delve into this in more depth soon, but for now let's just take it for granted that this is a well-known distinction, and it has meaning for mathematicians. Back when I was in grad school there was a department lunch with corn on the cob. Partway through the meal one of the analysts looked around the room and remarked, "That's odd, all of the analysts are eating corn one way and the algebraists are eating corn another!" Everyone looked around. In fact everyone was eating the corn in one of two ways. One way was to munch over the length of the corn in a straight line, back up, turn slightly, and do another row across. Kind of like how an old typewriter goes. The other way was to go around in a spiral. All of the analysts were eating in spirals, and the algebraists in rows. There were a number of mathematicians present whose fields of study didn't make it clear whether they were on the analysis or algebra side of things. We went around and asked, and in every case the way they ate corn matched their preference. Since then I've made a point of amusing myself by asking mathematicians I meet whether they prefer algebra or analysis, and then predicting which way they will eat corn. I'm probably up to 40 or so by now, and in every case but one I've been able to correctly predict how they eat corn. The one exception was a logician who claimed to be exactly on the fence between the two. When I explained the corn thing to him he looked surprised, and said that he had an unusual way of eating corn. He went in loose spirals! In other words he truly was a perfect combination of algebra and analysis!

Jan 17, 201910 min

Ep 149Too Many People Dare Call it Conspiracy

[Content warning: References to anti-Semitic and anti-Catholic canards] I feel deep affection for Gary Allen's None Dare Call It Conspiracy, a bizarre screed about the Federal Reserve/Communist/Trilateral Commission plot for a one world government. From its ridiculous title to its even-more-ridiculous cover image, this is a book that accepts its own nature. In the Aristotelian framework, where everything is trying to be the most perfect example of whatever it is, None Dare Call It Conspiracy has reached a certain apotheosis. But my problem is the opposite of Allen's. Too many people dare call too many things conspiracy. Perfectly reasonable hypotheses get attacked as conspiracy theories, derailing the discussion into arguments over when you're allowed to use the phrase. These arguments are surprisingly tough. Which of the following do you think should be classified as "conspiracy theories"? Which ones are so deranged that people espousing them should be excluded from civilized discussion? 1. Donald Trump and his advisors secretly met with Russian agents to discuss how to throw the 2016 election in his favor. 2. Donald Trump didn't collaborate with any Russians, but Democrats are working together to convince everyone that he did, in the hopes of getting him indicted or convincing the electorate that he's a traitor. 3. Insurance companies are working to sabotage any proposal for universal health care; if not for their constant machinations, we would have universal health care already. 4. The ruling classes constantly use lobbyists and soft power to sabotage tax increases, labor laws, and any other policy that increase the relative power of the poor. 5. America's aid to Israel is not in America's best interest, but is maintained through the power of AIPAC and other pro-Israel groups mainly supported by America's Jewish community. 6. The Jews are behind Brexit as a plot to weaken Western Europe. 7. Climate scientists routinely exaggerate or massage their studies to get the results they want, or only publish studies that get the results they want, both because of their personal political leanings and because they know it is good for their field to constantly be discovering exciting things that their funders and their supporters among the public want to hear.

Jan 16, 201943 min

Ep 148SSC Survey Results 2019

Thanks to the 8,171 people who took the 2019 Slate Star Codex survey. Some of the links below will say 13,171 people took the survey, but that's a bug – sometimes Google just adds 5,000 to things. You can: – See the questions for the SSC survey. – See the results from the SSC survey. I'll be publishing more complicated analyses over the course of the next year, hopefully starting later this week. If you want to scoop me, or investigate the data yourself, you can download the answers of the 7000 people who agreed to have their responses shared publicly. The public datasets will not exactly match the full version, nor will they include some of the sensitive sections like illegal drug use and sexual partners. Download the public data (.xlsx, .odf)

Jan 14, 20192 min

Ep 147Paradigms All the Way Down

Related to: Book Review: The Structure Of Scientific Revolutions Every good conspiracy theorist needs their own Grand Unified Chart; I'm a particular fan of this one. So far, my own Grand Unified Chart looks like this: All of these are examples of interpreting the world through a combination of pre-existing ideas what the world should be like (first column), plus actually experiencing the world (last column). In all of them, the world is too confusing and permits too many different interpretations to understand directly. You wouldn't even know where to start gathering more knowledge. So you take all of your pre-existing ideas (which you've gotten from somewhere) and interpret everything as behaving the way your pre-existing ideas tell you they will. Then as you gradually gather discrepancies between what you expected and what you get (middle column), you gradually become more and more confused until your existing categories buckle under the strain and you generate a new and self-consistent set of pre-existing ideas to see the world through, and then the process begins again. All of these domains share an idea that the interaction between facts and theories is bidirectional. Your facts may eventually determine what theory you have. But your theory also determines what facts you see and notice. Nor do contradictory facts immediately change a theory. The process of theory change is complicated, fiercely resisted by hard-to-describe factors, and based on some sort of idea of global tension that can't be directly reduced to any specific contradiction. (I linked the Discourse and Society levels of the chart to this post where I jokingly sum up the process of convincing someone as "First they ignore you, then they laugh at you, then they fight you, then they fight you half-heartedly, then they're neutral, then they grudgingly say you might have a point even though you're annoying, then they say on balance you're mostly right although you ignore some of the most important facets of the issue, then you win." My point is that ideological change – most dramatically religious conversion, but also Republicans becoming Democrats and vice versa – doesn't look like you "debunking" one of their facts and them admitting you are right. It is less like Popperian falsification and more like a Kuhnian paradigm shift or a Yudkowskian crisis of faith.)

Jan 12, 20196 min

Ep 146Book Review: The Structure of Scientific Revolutions

When I hear scientists talk about Thomas Kuhn, he sounds very reasonable. Scientists have theories that guide their work. Sometimes they run into things their theories can't explain. Then some genius develops a new theory, and scientists are guided by that one. So the cycle repeats, knowledge gained with every step. When I hear philosophers talk about Thomas Kuhn, he sounds like a madman. There is no such thing as ground-level truth! Only theory! No objective sense-data! Only theory! No basis for accepting or rejecting any theory over any other! Only theory! No scientists! Only theories, wearing lab coats and fake beards, hoping nobody will notice the charade! I decided to read Kuhn's The Structure Of Scientific Revolutions in order to understand this better. Having finished, I have come to a conclusion: yup, I can see why this book causes so much confusion. At first Kuhn's thesis appears simple, maybe even obvious. I found myself worrying at times that he was knocking down a straw man, although of course we have to read the history of philosophy backwards and remember that Kuhn may already be in the water supply, so to speak. He argues against a simplistic view of science in which it is merely the gradual accumulation of facts. So Aristotle discovered a few true facts, Galileo added a few more on, then Newton discovered a few more, and now we have very many facts indeed. In this model, good science cannot disagree with other good science. You're either wrong – as various pseudoscientists and failed scientists have been throughout history, positing false ideas like "the brain is only there to cool the blood" or "the sun orbits the earth". Or you're right, your ideas are enshrined in the Sacristry Of Settled Science, and your facts join the accumulated store that passes through the ages.

Jan 10, 201941 min

Ep 145Preregistration of Investigations for the 2019 SSC Survey

This post is about the 2019 SSC Survey. If you've read at least one blog post here before, please take the surveyif you haven't already. Please don't read on until you've taken it, since this post could bias your results. 1. Can we confirm or disconfirm different corn-eating profiles of algebraists vs. analysts? 2. Can we replicate the study showing that people who eat more beef jerky are more likely to be hospitalized for bipolar mania? 3. Are there differences in side effects among SSRIs? (to be limited to people taking an SSRI one month or more, will be looked at both effect by effect, and with a lumped-together side effect index where each mild effect counts as 1 point and each severe effect as 3 points) 4. Is there a difference in people's efficacy ratings for SSRIs (SSRI Effectiveness, SSRI Overall) depending on whether the person was taking the SSRI for depression vs. for anxiety? 5. What percent of people coming off SSRIs experience discontinuation symptoms? Are there differences among different agents? (main analysis to be limited to people who were taking an SSRI at least a few months, discontinued with a gradual taper lasting at least a few weeks, and were not cross-tapering onto any other psychiatric medication).

Jan 6, 20198 min