Big Ideas

Forty years ago this January, the Space Shuttle Challenger disintegrated on its way into orbit. All seven astronauts on board were killed. Dr Karl Kruszelnicki and Fiona Pepper investigate how the Challenger disaster unfolded – and what that has meant for space exploration from 1986 to now.In the days after the tragedy, the world wanted answers. What really caused the shuttle to explode? And should the launch have been stopped altogether?The Challenger Legacy is a five-part series from Science Friction and is out now.

Meet Dwayne Fernandes, a man training to be the first double amputee in space. He brings you a powerful perspective based on his lived experience: in zero gravity, his disability disappears and human potential soars free. He explores how the social model of disability transforms our understanding of accessibility, showing that environments either create barriers or unlock possibility. His message is both challenging and hopeful: if we can make space accessible, we can make any space accessible.The 2025 Disability Oration presented by the Disability Leadership InstituteSpeakersDwayne FernandesAstroAccess Flight 2 Ambassador, accessibility consultant with IDEA Services, co-founder of Minds at Play, and advocate with the Australian Space Diversity AllianceChristina RyanCEO and Founder of the Disability Leadership Institute

From the world's oldest continuous living culture, to the arrival of Captain Cook, the goldrush to the ANZACs, from Federation to elections to referendums, and beyond, our understanding of Australian history has evolved dramatically over recent years. Six esteemed scholars have six minutes each to wrestle with how our past unites, divides, and defines us. Who will win?The Great Debate was recorded for Social Sciences Week with the Academy of Social Sciences in Australia and the National Library of Australia.SpeakersAffirmative teamFrank BongiornoProfessor of historyDirector of the University of Canberra's Centre of Public IdeasAuthor, Dreamers and Schemers: A Political History of Australia and moreJakelin TroyNgarigu woman from the Snowy Mountains of NSWProfessor of AnthropologyDirector of Indigenous Research at the University of SydneyGeorgina DownerCEO of the Robert Menzies Institute, University of MelbourneNegative teamMichelle ArrowProfessor of modern history, Macquarie UniversityPresident of the Australian Historical AssociationAuthor, Women and Whitlam: Revisiting the Revolution and moreVonda MaloneFormer member of the Queensland Truth Telling and Healing InquiryFormer CEO of the Torres Strait Regional AuthorityFirst female Mayor of the Torres Shire CouncilDan WoodmanProfessor in Sociology at the University of MelbourneJudgesRichard HoldenProfessor of Economics, University of NSWFormer school debating championChris UhlmannPolitical contributor, Sky News, columnist, The AustralianKate Darian-SmithPresident of the Academy of the Social Sciences in Australia

He’s been called a “hypercapitalist”, a “new authoritarian” and a “post fascist”. Twelve months into Donald Trump’s second term as United States President, he has certainly reshaped the country and the world in ways that have shocked and surprised. So how should we understand his political ideology? The conversation Is It Fascism Yet? was recorded at the Sydney Opera House on 28 September 2025. SpeakersJason Stanley Professor of Philosophy and Linguistics, Chair of American Studies at the University of Toronto Author, How Fascism Works: The Politics of Us and Them, Erasing History: How Fascists Rewrite the Past to Control the Future, and more M. Gessen Opinion writer for the New York Times Author, Surviving Autocracy, The Future Is History: How Totalitarianism Reclaimed Russia and more Anna Funder (host) Author, Wifedom, Stasiland, All That I Am Further information:One Year of Trump. The Time to Act Is Now, While We Still Can. M.Gessen, The New York Times, 18 January 2026Why I Fled Trump's AmericaJason Stanley, Zeteo, 26 July 2025

Don't miss meeting these four resilient women creating the change they want to see in the world. At 20, Monique “Mermaid” Murphy’s had a catastrophic accident. Two years later she won Silver at the Paralympics. At 21, Larisha Jerome turned homelessness into buying her first home. Now she advocates for financial justice for other First Nations people. At 14, Nasteho Mukhtar arrived in Australia with her mother and siblings as a refugee from Somalia. Now the social enterprise founder, poet, and Muay Thai fighter helps other women find their power. At 16, Claudia Kurowski is Cairns Young Woman of the Year, a charity-founder, youth parliamentarian, and wants young people to consider politics. Their stories will WOW you, as they join Natasha Mitchell on stage at the WOW (Women of the World) Australia School’s Day in Meanjin/Brisbane.SpeakersLarisha Jerome Proud Jarowair, Wakka Wakka and Wulli Wulli womanman Chair, Jarowair Aboriginal Corporation Board director, the Happy Boxes Project Founder, Liberate with Larisha Monique Murphy Silver medal-winning Paralympian swimmer Nasteho Mukhtar Program coordinator, ETHNI Co-founder and manager, Maua Boutique Claudia Kurowski Year 12 student, Cairns State High School 2025 Cairns Young Woman of the Year Co-founder of the youth-led charity, the Gratitude Initiative Parliamentarian and Youth Minister of the Health, YMCA Queensland Youth Parliament.Thank you to event producers Kaylah Tyson and Jo Pratt.

He jumped off a plane, exchanged the notorious briefcase on a park bench and got his identity blown by an asset under torture. Sounds like fiction? But the real stories still differ remarkably from novels and films. A discussion about the realities of espionage and the stories that surround it - filled with intrigue and hidden truths for your ears only. Spies, Lies and Secretes was recorded live at the 2025 Sydney Writers’ Festival at Carriageworks. SpeakersBen MacintyreBestselling author of books including The Siege, Colditz, Agent Sonya, SAS: Rogue Heroes, The Spy and the Traitor, Agent Zigzag, Operation Mincemeat and A Spy Among Friends Jack Beaumont (pseudonym)Former operative of the French foreign secret service, the DGSE, Author of The Frenchman and Dark Arena Matthew Condon (host)Prize-winning Australian novelist and journalist

DNA testing has helped family history researchers fill in the blanks in their family trees. While that can be a good thing, it can also lead to unexpected consequences. From "non-parental events", to big data hacks, to unauthorised use of DNA in criminal investigations, this is everything you need to know about genetic genealogy.This event was recorded at the State Library of NSW for Family History Month 2025.SpeakersClaire Aird Journalist, presenter of the podcast series, Secrets We Keep: Should I Spit?Vanessa CassinEducation Manager, Society of Australian GenealogistsProfessor Tanya Evans Director of the Centre for Applied History, Macquarie UniversityPresident of the International Federation of Public HistoryAuthor, Family History, Historical Consciousness and Citizenship: A new social history and moreAdria Castellucci (host)Lead, Family History team, State Library of New South WalesFurther information:How a church-run DNA donation led Michael to be falsely accused of murder SBS News, 6 July 2025

How has the fossil fuel industry wielded influence over Australian governments and their policies? What does it take to make ambitious change in the public interest, without vested interests getting in way? Join Natasha Mitchell and guests at Adelaide Writers Week.Origninal broadcast on March 12, 2025.SpeakersDr Richard DennissEconomist and Executive Director of The Australia InstituteAuthor of BIG: The Role of the State in the Modern Economy (2022)Ross GarnautEconomistProfessor Emeritus in business and economics, University of MelbourneBoard director of renewable energy company ZEN ENERGYAuthor of Let's Tax Carbon: And other ideas for a better Australia (2024), Superpower: Australia's Low Carbon Opportunity (2019)Sarah Hanson-YoungSenator for South AustraliaGreens spokesperson for arts and communications, and environment and waterRoyce KurmelovsFreelance journalistAuthor of Slick: Australia's Toxic Relationship with Big Oil (2024)

A workforce we rarely hear about, lives in limbo, and stories from the coalface. From economic gains and cultural exchanges to exploitation and absconding, what are the successes and problems of the Pacific Australia Labour Mobility (PALM) scheme? Who picks and processes those yummy strawberries you're about to put in your shopping trolley, or the crisp veggies you might stir-fry tonight? Did you know it could be a nurse or a police officer from a Pacific Island or Timor Leste on a temporary seasonal visa? Join Natasha Mitchell and guests for this event organised by Griffith University and the Australian National University, and held at the ANU.Original broadcast on June 4, 2025.SpeakersDr Kaya BarryCultural Geographer, artist, senior lecturer, DECRA Research FellowCentre for Social and Cultural Research, Griffith UniversityNunes CosbarMusician, photographer, horticultural employee in Australia on a PALM visa. Band member with Lian Husi TimorKen DachiCoordinator, Welcoming Workplaces with Welcoming AustraliaEma VuetiPresident, Pacific Islands Council of Queensland (PICQ)Thanks also to James Lees (Griffith University), Dr Matt Withers (ANU South Asia Research Institute), and Dr Kirstie Petrou (School of Humanities and Social Sciences, UNSW Canberra)Further informationTimorese abattoir workers perform at Port Fairy Folk Festival after call for musos (ABC Australia short film)

At face value, collaboration sounds like a good thing: collaboration in the classroom, with colleagues, or between nations. But throughout history, collaboration was not always considered a virtuous act, and those who were identified as collaborators were shunned, humiliated or worse. This talk explores how people justify their involvement in wrongdoing, and how, when collaboration devolves into conformity, it risks silencing dissent.This event was recorded at the Bundanon Art Museum.Original broadcast on July 28, 2025.SpeakerDr Simon Longstaff — Executive Director, The Ethics Centre

Your personal safety is big business, so much so that it’s given rise to “security capitalism”, a phenomenon where attempts to buy personal safety shape the world around us. As security becomes just another status symbol, do these gadgets make us safer or do they create a whole new list of anxieties – a self-fulfilling prophecy of perceived threat and risk aversion? This conversation 'Trapped: Does the security industry make us less safe?' was recorded at the CUNY Graduate Centre. Original broadcast on May 29, 2025.SpeakersMark MaguireProfessor of anthropology at Maynooth University, co-author, Trapped: Life Under Security Capitalism and How to Escape ItSetha LowProfessor of psychology, anthropology, earth and environmental sciences, and women's and gender studies at the CUNY Graduate Center, co-author, Trapped: Life Under Security Capitalism and How to Escape ItAlex Vitale (host)Professor of sociology and coordinator of the Policing and Social Justice Project at Brooklyn College and the CUNY Graduate Center

"Homeric struggle", a desperate night-ballet, an ethical training ground for boys and men. Aussie Rules is a multimillion-dollar industry, but at its heart, to thousands of people, it's much more than that. Including to Australian literary great, Helen Garner.This event was recorded at the National Library of Australia on 20 February 2025.Original broadcast March 6, 2025.SpeakersHelen GarnerAuthor, The Season, Monkey Grip, The Children's Bach, The First Stone, Joe Cinque's Consolation, The Spare Room, This House of Grief and moreBeejay Silcox (host)Critic, writer, outgoing Artistic Director, Canberra Writers Festival

We’re past the brink of civilisational collapse. And many environmentalists are pushing a “fake green fairytale”. Jem Bendell’s arguments have inspired the Extinction Rebellion movement’s civil disobedience pushing for climate change action. But Jem doesn’t think protest is enough now. Find out why the self-confessed eco-libertarian and author of Breaking Together: A freedom-loving response to collapse thinks we should break together not apart. Jem joins Big Ideas host Natasha Mitchell at the 2024 Festival of Dangerous Ideas (FODI)Original broadcast on February 19, 2025.SpeakerJem Bendell Author, Breaking Together: A freedom-loving response to collapse (2023)Author, Deep Adaptation: A Map for Navigating Climate Tragedy (2018, 2020)Co-founder of Bekandze Farm - Regenerative Training CentreFounder, the Deep Adaptation ForumBand member, the Barefoot StarsEmeritus Professor of Sustainability Leadership, University of CumbriaSenior Distinguished Fellow, Schumacher Institute

We know them as Zuckerberg, Musk, Bezos, Gates, Jobs. But to Kara Swisher, they're Mark, Elon, Jeff, Bill, and Steve. She was once a Silicon Valley insider, but now she's one of big tech's most vocal critics.This event was recorded at Adelaide Writers Week on Monday 3 March 2025.Original broadcast on April 15, 2025.SpeakersKara SwisherAuthor, Burn Book: A Tech Love Story, aol.com: How Steve Case Beat Bill Gates, Nailed the Netheads and Made Millions in the War for the Web and There Must Be a Pony in Here Somewhere: The AOL Time Warner Debacle and the Quest for a Digital FutureHost of podcast On with Kara Swisher, and co-host of podcast, Pivot (with NYU Professor Scott Galloway)Former tech journalist with Washington Post, Wall Street Journal, contributing opinion editor New York TimesMarc Fennell (host)Host of new podcast, Noone saw it coming ABC Radio NationalCreator and host Stuff the British Stole ABC Radio National and ABC TVFormer host, Download this Show ABC Radio National

Imagine a world where your brain is enhanced through cutting-edge technologies and next-generation AI, blurring the lines between organic and digital realms … and unlocking unprecedented potential. We are already some steps on the way in such a future. What would this mean for intelligence, human agency and consciousness?Your Brain on AI From organoids to consciousness was presented by the Sydney Opera House.Original broadcast on February 11, 2025.SpeakersPaul DaviesTheoretical physicist, cosmologist, astrobiologist, Arizona State University and best-selling authorDr Inês HipólitoAssistant Professor of Philosophy of Artificial Intelligence, Macquarie UniversityDr Brett J. KaganChief Scientific Officer at Cortical LabsDr Sandra PeterDirector of Sydney Executive Plus, Associate Professor the University of Sydney Business School

You've got half an hour with Lou Reed/ Nick Cave/ Courtney Love: what do you ask them? Three of Australia's best music writers share their craft, and reveal what it's like to sit down with some of music's biggest names.This event was recorded on 2 November 2024 at the Art Gallery of Ballarat.Original broadcast on January 23, 2025.SpeakersStuart Coupe Author, journalist, radio broadcaster, music commentator, publicist at Stuart Coupe PublicityJane Gazzo Music Journalist, TV Presenter, Author ( her new book is I Hear Motion), MC, Public Speaker, founder and presenter Action Time Vision - ATVMichael Dwyer Music journalist, lecturer and member of David Bowie ukulele tribute band The Thin White UkesZan Rowe (host) ABC Music correspondent, Double J and Take 5 hostFurther information:The exhibition From Medieval to Metal: The art & evolution of the guitar is on at the Art Gallery of Ballarat until 2 February 2024

Two of Australia’s most influential and legendary storytellers, author Tim Winton and filmmaker Rachel Perkins, join Natasha Mitchell at WOMADelaide’s Planet Talks to discuss the power of stories and the role of artists to create change in the world.Original broadcast on April 2, 2025.SpeakersRachel PerkinsMulti-award-winning filmmaker, and founder of Blackfella filmsDirector, presenter, co-writer, co-producer The Australian Wars series (available on SBS On Demand)Co-director, co-writer, co-producer First AustraliansTim WintonMulti-award-winning author of Juice, Dirt Music, Cloudstreet and more.Patron of the Australian Marine Conservation Society Host and writer, Ningaloo Nyinggulu series (available on ABC Iview)Activist, Protect Ningaloo and Exmouth Gulf campaignThis event was recorded live at the annual 2025 WOMADelaide festival produced and presented as part of its Planet Talks program, held on the traditional lands of the Kaurna people. Thanks to Planet Talks producer Rob Law.

Populism is part of American political history. It has been and still is the dominant vocabulary of dissent. But the current resurrection of authoritarian politics in the US is different. While the two parties could absorb populist movements in the past, this time populism has absorbed the party.Presented at the American Academy in BerlinOriginal broadcast on April 1, 2025.SpeakerJefferson CowieJames G. Stahlman Professor in American History at Vanderbilt UniversityAmerican Academy in Berlin, Axel Springer Fellow — Class of Spring 2025

How many times have you checked your phone today? How many tabs are open in your web browser? Do you feel in control of your attention? In the digital age, attention is now a commodity. Can practices like meditation and mindfulness help us feel more free to focus on what really matters?This event was hosted at the Brunswick Ballroom by the Sophia Club in partnership with the University of Melbourne's Contemplative Studies Centre.Original broadcast on March 18, 2025.SpeakersJess HuonMeditation trainer, authorised Dharma teacher, writer (The Dark Wet)Nicholas Van DamDirector of the Contemplative Studies Centre at the University of MelbourneAssociate professor, School of Psychological Sciences, University of MelbourneBrigid Hains (host)Editorial director, Aeon MediaMatthias Schack-Arnott Musician

Satyajit Das presents a provocative examination of the use and abuse of images of wild animals, and how they shape our relationships with the natural world. These pictures can create an impression of abundance and untouched ecosystems, and lull us into a false sense of security, at a time when the natural world faces ecological calamity.The Attenborough Effect — Shaping Our Relationship With Wild Animals was presented by the Australian National Maritime Museum.Listen to the rest of our special series Animals — Us and Them?Original broadcast on February 20, 2025.SpeakerSatyajit DasAuthor of Wild Quests. Journeys into Ecotourism and the Future for Animalsformer banker, recognised as one of the world's leading financial thinkers.

Prepare to have your mind blown with a sweeping saga that connects human evolution, brains, genes, art, music, creativity, knowledge, dyslexia, autism, Indigenous memory systems, and more. A big, beautiful and biological saga about how to learn like a human again. Joining Natasha Mitchell are Australian Senior Memory Champion, scientist and author Dr Lynne Kelly with artist Jane Rusden and musician and educator Hilary Blackshaw. This event was hosted by the 2024 Mountain Festival in Macedon, Victoria.Original broadcast January 20, 2025.SpeakersDr Lynne KellyScience writerAuthor, The Knowledge Gene: the incredible story of the supergene that gives us human creativity (Allen and Unwin, 2024)Author, The Memory Code (Allen and Unwin, 2016) Adjunct Research Fellow, School of Humanities and Social Sciences, La Trobe UniversityHonorary Fellow, School of Physics, University of MelbourneHilary BlackshawMusician and musical educatorBendigo Musical Instrumental ProgramJane RusdenArtist

Historian Sarah Churchwell takes you on a gripping and confronting journey into America's recent past to explain its extraordinary present, starting with dark story at the heart of that American classic Gone with the Wind. Knowledge lies at the heart of a healthy democracy, and its many custodians include libraries, universities, cultural institutions, and a free and independent media. So what happens when these institutions are intimidated, dismantled or destroyed, as is happening in America, under the government of President Donald Trump?This event was recorded at the University of Technology Sydney's Vice Chancellor's Democracy Forum on 14 May 2025.Original broadcast on June 17, 2025.SpeakersSarah ChurchwellProfessor of American Literature and Chair of Public Understanding of the Humanities at the University of LondonAuthor, The Many Lives of Marilyn Monroe, Careless People: Murder, Mayhem and The Invention of The Great Gatsby, Behold, America: A History of America First and the American Dream, and The Wrath to Come: Gone with the Wind and the Lies America TellsDirector, Being Human festival and Living Literature event seriesJudge, Man Booker PrizeAnna Funder (host)Author, Wifedom, Stasiland and All That I AmLuminary and Ambassador, University of Technology SydneyRoy Green (host)Emeritus Professor and Special Innovation Advisor at University of Technology SydneyFormer Dean of the UTS Business SchoolChair of the UTS Advanced Robotics for Manufacturing HubFurther informationFrom Gatsby to Huck Finn — American literature in an age of polarisation - Sarah Churchwell on Big Ideas, ABC Radio National 4 November 2024

After five nominations, Ruthie Foster has taken home the 2025 Grammy Award for Best Contemporary Blues Album - affirming her status as an American music legend. In this intimate conversation, she shares what made her want to be a singer; the roles of her grandmother and mother in her life; why faith is so important to her and why she wants to sing about real people. And much more…A Heartlands Conservation presented at the Blue Mountains Music Festival.Original broadcast May 12, 2025.SpeakersRuthie FosterAmerican singer-songwriter of blues and folk music. 2025 Grammy Award winner for Best Contemporary Blues AlbumGregg Borschmann (host)Writer, radio producer and oral historian for the National Library of Australia

When you enter your childbearing years, it can feel like everyone from the treasurer, your mum, and probably your Instagram reels really wants you to have a kid. But is it the right decision? Few women escape this conundrum of modern family-making, and unfortunately there is no easy or simple answer. But in this talk presented by the Sydney Opera House at the All About Women Festival 2025, you’ll get the context, prompts and profound reflections to help you think through this decision, whether it’s in your own life or for someone you love. Original broadcast on June 26, 2024

Meet two men who will change the way you think about an experience most of us fear but will be touched by in some way. In Patting the Shark, surfing writer Dr Tim Baker describes his wild ride to reclaim a sense of control and agency after a cancer diagnosis. Celebrated author and GP Peter Goldsworthy’s memoir The Cancer Finishing School started out as a journal but became so much more.They join Natasha Mitchell for intimate an intimate, revelatory, funny, and generous conversation about the Big C and how medicine needs to change. This event was hosted by the 2024 Queenscliffe Literary FestivalOriginal broadcast on January 22, 2025.SpeakersDr Tim BakerJournalist, editor, patient advocate, and facilitator of the Peter Mac Book GroupResearch Fellow, Prostate Cancer Research Group, Monash Biomedical Discovery InstituteAuthor, Patting the Shark: A surfer's journey — learning to live well with cancer (Ebury Australia/Penguin, 2022)Dr Peter GoldsworthyGP, author, librettist, poetAuthor, The Cancer Finishing School —lessons in laughter, love, resilience (Penguin, 2024)

Are fermented foods really good for us? Do antibiotics destroy our gut flora? And have you heard about poo transplants?Our gut is teeming with trillions of microbial cells, and we are learning more all the time about how this affects everything from our digestion, to immunity, to mental health.So crack open your kombucha, because these leading researchers will cut through the noise with some hard facts and pioneering science about the microbiome.This event was recorded at the World Science Festival Brisbane 30 March 2025.Original broadcast on June 25, 2025.SpeakersPaul GriffinProfessor of Medicine, Clinical Unit Head and Director of Infectious Diseases, University of Queensland and Mater HospitalFelice JackaDistinguished Professor in Nutritional PsychiatryFounder and director, Food and Mood Centre Deakin UniversityAuthor, There's a Zoo in my PooGene TysonMicrobial ecologist, bioinformatician, and founder, Centre for Microbiome research, Queensland University of TechnologyDr Norman Swan (host)Presenter, Health Report and What's That Rash? ABC Radio National

Doctor Who has acted as a mirror to more than six decades of social, technological and cultural change. It's been able to evolve and adapt more radically than any other fiction. Why we are so addicted to fiction, and why does this wonderful wandering time traveller mean so much to so many. This talk was provided by the York Festival of Ideas. The Festival is led by the University of York, UK.Original broadcast on July 21, 2025.SpeakerJohn HiggsAuthor of Exterminate/Regenerate: The Story of Doctor Who (Weidenfeld & Nicolson 2025)

The connection between body and mind is well established. But mental health expert Daniel Fung also includes the soul in this 'ecosystem' that shapes your overall wellbeing. He envisions a future for mental health services, that is person-centred, holistic and consciously uses digital tools and social media.Beautiful minds, Loving hearts: Asian Mental Health Ecosystems in 2050 was presented at TheMHS (Mental Health Services) conference 2025 in BrisbaneListen to Big Ideas — How to overcome the fear and anxiety that are holding you backSpeakersDaniel Fung - CEO Institute of Mental Health, SingaporeBarbara Disley - Board Member, TheMHS Learning NetworkFurther informationMindline - digital first-stop touchpoint for mental health in Singapore

From innocently conning controversial radio duo Kyle and Jackie O as a kid, time in a Zambian convent as a teen, to nearly becoming an air traffic controller before finding her real passion - helping others find their voice - Astrid Jorgensen has quite a story to tell. Her new memoir is called Average At Best. She is anything but. She is anything but. On any one night, anywhere in the world, you’ll find Astrid on a stage in front of a few thousand people singing their hearts out. But to call Astrid Jorgensen a choir conductor doesn’t really capture the incredible global phenomenon she’s created. She’s the founder, composer, and host of Pub Choir, described as the “world’s biggest one night stand in song”. This event was organised by Northern Books in Castlemaine and held at the Fitzroy Town Hall in Naarm/Melbourne.SpeakerAstrid JorgensenFounder and conductor of Pub ChoirAuthor, Average At Best (Simon and Schuster Australia, 2025)Further informationHow Astrid Jorgensen turned a suburban pub choir into a worldwide musical phenomenon (Australian Story/ABC News, 2025)Watch Australian Story episode about Astrid on Youtube (2025)

Australia now has its first treaty with this country's first peoples. After nearly a decade of formal consultation and negotiation, the Victorian Statewide Treaty has become law, and will come into effect from early December. This address outlines the long road to achieving the treaty, why it's important, and what comes next.The 25th Dr Charles Perkins Oration was recorded on 28 October 2025 at the University of Sydney.SpeakersNgarra MurrayCo-chair, Victorian First People's Assembly

Humans are by nature creative, but how do we turn a spark of inspiration into something more tangible? Author Emily Maguire draws inspiration from some of the world's most creative minds — from Lin Manuel Miranda, to Susan Sontag, to explore the ingredients of a truly creative life.The 2025 Colin Roderick Memorial Lecture, hosted by the Foundation of Australian Literary Studies at James Cook University in partnership with the Australian Festival of Chamber Music, was recorded on 29th July 2025 in Townsville.SpeakersEmily MaguireAuthor, Rapture, An Isolated Incident, Love Objects, and moreTeacher of writing, Writing NSWThe Vanya QuartetElder Conservatorium, University of AdelaidePlaying Saoirse, composed by Belle Smibert

As we grow older, changes to our bodies and minds are inevitable. But what if science could help us age better? Our experts on Big Ideas uncover the latest science behind healthy brain aging. What's possible in the fight against cognitive decline and dementia? How might you live a longer, healthier, and more meaningful life?Presented by Sydney Ideas, the talk program at the University of SydneySpeakersAssociate Professor Eleanor DrummondSenior Lecturer (Neuroscience), School of Medical Sciences, University of SydneyOlivier PiguetNHMRC Leadership Fellow and Professor of Clinical Neuropsychology, University of SydneyGilbert KnaggsSociology PhD candidate, University of SydneyElfy Scott (host)award-winning journalist, podcaster, and presenter

When acclaimed Australia author Christos Tsiolkas was invited to give the 2025 Ray Mathew Lecture at the National Library of Australia, he had in mind what he wanted to say, as difficult as it was. Then he got a rage-filled message from a longtime friend. How did Christos respond? Is fence-sitting an indulgence in an ethically troubled, divisive, dislocated world? Or, is 'speaking across the fence' something writers and other creatives can offer us?"We're urged at all times — and for every occasion — to take a position. Yet is there a utility, both practical and ethical, in taking a breath, a pause, and refusing to land definitively on a stance?" — Christos TsiolkasSpeakerChristos TsiolkasAuthor of The Slap, The In Between, Barracuda, DamascusPlaywright and screenwriterFurther informationMore about the annual Ray Mathew Lecture, including the transcript and video of the 2025 lecture

From The Don to Warny, the Gabba to the G, from its legacy of British colonialism, to the Asian powerhouse nations of today — cricket is not just a sport, but also a reflection of the societies who play it. Drawing on a wealth of writing about the sport, including novels, biographies, and media reporting, this lecture explores the cultural and historical legacy of cricket.This event was recorded at the Australian Catholic University on 30 October 2025.SpeakersPaul Giles Professor of English, Australian Catholic UniversityGideon Haigh Journalist and author of The Cricket War, The Summer Game and On WarneEditor and host, Cricket Et Al podcast and newsletterOpening batsman, South Yarra Cricket Club

Born in apartheid South Africa, she became the country's first female high court judge. She sat on the International Criminal Tribunal for Rwanda, and helped to establish sexual violence and rape as war crimes in international law. At a time of global conflict and instability, the work and achievements of Navi Pillay are a reminder of what can be achieved when accountability trumps impunity, when the law defeats lawlessness, and justice prevails over injustice.The 2025 Sydney Peace Prize Lecture, hosted by the Sydney Peace Foundation, was recorded at the Sydney Town Hall on 6 November 2025.SpeakersNavi PillayFormer Chair of the United Nation's Commission of Inquiry on the Occupied Palestinian TerritoryFormer United Nations High Commissioner for Human RightsFormer President and Judge of the International Criminal Tribunal for RwandaSouth Africa's first female High Court JudgeChris SidotiMember of the United Nation's Commission of Inquiry on the Occupied Palestinian TerritoryFormer Australian Human Rights CommissionerFormer Chair of the Australian Law Reform CommissionRawan ArrafFounder and Executive Director of the Australian Centre for International JusticeNour Haydar (host)Journalist and co-host, Full Story, Guardian Australia

Young Australians are losing faith that our politics, our civic institutions and the mainstream media are working for them. Why is this? And how can our democracy adapt to win back the trust and engagement of new generations?The 2025 Speaker's Lecture was recorded at Parliament House on 27 October 2025.SpeakersHolly Rankin - Musician and recording artist Jack River, founder, Sentiment, director, Teach Us ConsentMilton Dick - Speaker of the House of Representatives, Labor Member for OxleyFurther information:SOS Democracy with Niki Savva — Can politicians and journalists do better?2024 Speaker's Lecture - Big Ideas, ABC Radio National, 15 October 2024

Are our universities facing an existential crisis by trying to be too many things? Places for learning, research, the production of new knowledge, the production of job-ready graduates, and profit-making enterprises? Does everything they do have to produce a tangible, measurable, practical, or profitable outcome? Should they also foster intellectual life and the pursuit of ideas just for curiosity's sake? Or is that an elite, outdated mission? Who gets to judge what knowledge is deemed useless or useful? Join Big ideas host Natasha Mitchell with guests to mark the 25th anniversary of the Institute of Advanced Studies at the University of Western Australia.SpeakersAssociate Professor Oron Catts, Academic lead of the Institute of Advanced Studies, pioneering artist and founder of Symbiotica: The Centre of Excellence in Biological ArtsDr Jessyca Hutchens, Palyku woman, art historian, indigenous studies lecturer and co-director of the Berndt Museum, University of Western Australia.Terri-Ann White, former founding director of the Institute for Advanced Studies, former head of UWA Publishing, and founder of the independent publishing house UpswellFurther readingThe Usefulness of Useless Knowledge by Abraham Flexnor (Harpers, 1939)Famous educator and reformer Abraham Flexnor was founder of the first Institute for Advanced Study in 1930. Albert Einstein was a member of its founding faculty and at least 37 Nobel Laureates have found an intellectual home there since.

We often hear about "failing schools", but what if it is us, the Australian community, who are failing them? Public school advocate Jane Caro argues that Australia's pursuit of school choice, and the tax payer funding that enables it, has come at a huge cost to the school system, to children's education, and to our broader society.The 2025 Dymphna Clark Lecture at Manning Clark House was recorded on 26 August 2025.SpeakersJane Caro — Author, The Mother, Lyrebird, What Makes a Good School? and more, columnist, commentator, former advertising copywriter, academic, public schools advocate

Join ABC's Mon Schafter and four incredible speakers as they share honest, powerful stories about revealing their identities on their own terms. From fear to freedom, isolation to community - this is a conversation about truth, courage, and connection. Held in recognition of 40 years of ACON, it celebrates every journey of coming out and shines a light on personal stories, collective resilience, and the power of being seen.SupportIf this conversation raises any concerns for you, QLife is an Australia-wide anonymous and free peer support service for LGBTIQ+ people. Call 1800 184 527 or webchat 3pm-9pm every day at qlife.org.auABCQueer’s list of LGBTQIA+ community support services in Australia.SpeakersNina OyamaAustralian comedian, writer, actress and directorJi WallaceAustralian trampoline gymnast and Olympic silver medallistZoe TerakesAustralian actor; author of Eros: Queer Myths for LoversDr Atari MetcalfGP in NSWMon Schafter (host)Walkley Award-winning journalist, presenter and producer, founding editor of ABC Queer

If you're a feminist, or pro-civil or gay rights, does that make you "woke"? And if you're not, does that mean you should be cancelled, or abused online, or lose your job? So many of our public debates nowadays are divided along these lines, but is there a better way?This event was recorded at the 2025 Melbourne Writers Festival. To explore more Melbourne Writers Festival talks, visit mwf.com.au.SpeakersAC Grayling Philosopher, author, Discriminations: Making peace in the culture wars, and many more, Principal of Northeastern University London, and its Professor of PhilosophyEsther Anatolitis (host) Editor, arts and culture advocate, leader, commentator, author, When Australia Became a Republic, former Meanjin editor

Friends are different from family. We choose them and they choose us. Philosophers long wondered about what makes friendship such a distinctive relationship in our lives. Is being a good friend a kind of moral virtue? Can friends help us find our true selves? What about the dark and difficult side of friendship — toxic friends and frenemies? How is the love between friends different from romantic love? Join Big Ideas host Natasha Mitchell and guests at the Sophia Club, a live philosophy event series held in Melbourne, London and New York. It is produced by Aeon Media, publishers of Aeon and Psyche.SpeakersMark Alfano — Professor of philosophy at Macquarie University, author of Moral Psychology: An Introduction, and Nietzsche's Moral Psychology.Dr Peter Knight — multi-award winning composer, trumpeter and electroacoustic musician, former artistic director of the Australian Art Orchestra.Sunny Kim — internationally renowned South Korean-born vocalist, composer, improviser, and senior lecturer in the jazz and improvisation at the University of Melbourne.Thank you to Sam Dresser (senior editor), Brigid Hains (editorial director and co-founder), and colleagues at Aeon Media.

To deal with China as a major trading partner, and also a national security threat requires understanding the history that made China what it is today. That history is shaped by resistance and different waves of uprising. How have governments dealt with these movements? How do they influence politics today?China: Past, Present, Future was recorded live at the 2025 Sydney Writers' Festival.Listen to Big Ideas — Behrouz Boochani and Arnold Zable: The language of resistanceSpeakersLinda JaivinAustralian author, cultural commentator, essayist and translatorAuthor of Bombard the Headquarters! China's Cultural RevolutionLouisa LimAward-winning journalist who reported from China for a decade for NPR and the BBCAuthor of Indelible City: Dispossession and Defiance in Hong KongEdward WongAmerican journalist and diplomatic correspondent for The New York TimesAuthor of At the Edge of Empire: A Family's Reckoning with ChinaPeter Hartcher (host)Australian journalist and the Political and International Editor of The Sydney Morning HeraldAuthor of Red Zone: China's Challenge and Australia's Future

The United States has long been famous for its world leading universities. But in the face of research funding cuts, government attacks on free speech, DEI and the right to protest, and the persecution of foreign students, could all that be changing?The speech, Poison Ideas: Universities and other Antidotes to Authoritarianism, was recorded at the 2025 conference of the Australasian Council of Deans of Arts, Social Sciences and Humanities (DASSH) representing 350 deans and associate deans from Australian and New Zealand universities.SpeakersSimon Adams - President & CEO, Centre for Victims of Torture, Professor of Human Rights, Murdoch University

The Western world is supposed to stand for values like freedom, justice and human rights, a commitment to meet wrongdoing with consequence, guided by rules and obligations. How then, do we reconcile that with Western governments' and media's support of and complicity in the horrors in Gaza? How do we witness the bloodshed and destruction, and yet look away?This conversation was recorded at the Canberra Writers Festival on 26 October 2025.SpeakersOmar El Akkad Author, One Day, Everyone Will Have Always Been Against This, and novels The American War and What Strange ParadisePeter Greste (host) Professor of journalism, Macquarie University, Author, The Correspondent

Build more houses. That'll fix Australia's housing crisis won't it? If you listen to governments, you'd sure think so. Under the National Housing Accord, all governments have agreed to support a target of building 1.2 million new, well-located dwellings in 5 years. But will that increase housing affordability, availability, quality, security of tenure, and the growing gap between the haves and have-nots? What's missing from this picture?Join Big Ideas host Natasha Mitchell at the 2025 National Housing Conference with guests debating the rhetoric, reality and policies around housing supply.This event was organised by the Australian Housing and Urban Institute (AHURI), hosts of the National Housing Conference.SpeakersDavid ReynondsChief Executive, Department of Housing and Urban DevelopmentGovernment of South AustraliaProfessor Rachel Ong ViforjLeading housing policy researcher and advisorJohn Curtin Distinguished Professor of EconomicsCurtin UniversityDr Tim WilliamsGlobal Practice Leader, CitiesFormer advisor to five consecutive UK housing ministersFormer CEO, Committee of SydneyArchitecture firm GrimshawHost, The Grimshaw podcast Further informationProductivity Commission report on housing construction productivity (2025)The Economics of Housing Supply: key concepts and issues (August 2024)The State of the Housing System 2025: National Housing Supply and Affordability Council's second annual report.Housing policy reporting by ABC NewsHousing research reports and analysis by the Australian Housing and Urban Research Institute (AHURI)Housing analysis by the Grattan Institute

Whitlam's dismissal and following double dissolution 50 years ago, was arguably the most tumultuous period in Australia's political and constitutional history. This political crisis raises key questions about constitutional change and the robustness of Australia's current democracy. What are the lessons? And could it happen again?Presented at the National Archives of AustraliaSpeakersAnne TwomeyProfessor Emerita of Constitutional Law at the University of Sydney Law SchoolFrank BongiornoProfessor of history, Australian National UniversityFrom 2026, Donald Horne Professor of History and Public Ideas and Director of the new Centre of Public Ideas at the University of Canberra Dr Brendan LimBarrister and author of Australia's Constitution after WhitlamPaul Barclay (host)Broadcaster and former presenter of Big Ideas

In the 1930s, New Zealand-born, Cambridge educated Arthur Dale Trendall carved a niche for himself as the world's foremost expert in the study of ancient South Italian vase painting. How then, did he end up leading a crack team of code-breakers working in Melbourne to decipher Japanese messages for the Allies during the Second World War?This lecture was recorded at Melbourne's Shrine of Remembrance in partnership with La Trobe University's Trendall Research Centre.SpeakersDr Gillian Shepherd — Director of the A.D. Trendall Research Centre for Ancient Mediterranean Studies, Senior Lecturer in Classics and Ancient History at La Trobe University

When it was founded in 2015, openai — the company behind Chat GPT — had a mission to develop artificial intelligence tools that would benefit humanity. But somewhere along the way, that mission changed. While the use of AI in our daily lives is increasingly pervasive, the technology's toll on the environment, human rights, copyright, privacy and workers and resources in the global south is starting to mount. In her new book, leading AI reporter Karen Hao details the AI industry's pursuit of progress at any cost.This conversation was recorded at RMIT University in partnership with Readings Bookshop on 5 September 2025.SpeakersKaren Hao Author, Empire of AI: inside the reckless race for total domination, former Wall St Journal reporter, former senior AI editor at the MIT Technology Review, lead at the Pulitzer Centre's AI spotlight series, one of Time Magazine's Top 100 people in AI in 2025Kobi Leins (host) Lawyer, academic, AI governance and digital ethics advisor, author, New War Technologies and International Law: The Legal Limits to Weaponising Nanomaterials

ABC Radio National's CITIZEN JURY takes hard, hot-button issues affecting a community — and places citizens at the centre of finding solutions. It's citizen-driven democracy in action!Tasmanian salmon is on dinner plates across Australia. It's a 1.4 billion-dollar industry producing jobs for Tasmanians, and more than 70, 000 tonnes of fish annually — with plans for expansion. But salmon farming has also become a lightning-rod for locals concerned about its environmental impact — on water quality, wild species, and then there was the mass mortality event last summer which saw over 1 million salmon die and smelly fatty fishy globules wash up on local beaches. Join BIG IDEAS host and science journalist Natasha Mitchell in the historic town of Franklin in the Huon Valley with three Citizen jurors, two expert witnesses, and a live audience of passionate locals — including salmon workers and activists — as they listen, debate, and share solutions on this fraught issue.CITIZEN JURORSJohn StanfieldLifelong recreational fisher in Tasmania, former army employee, now works in healthFounder, RecFishTas (Recreational Fishing in Tasmania) Facebook GroupPeter GrahamSculptor, former mining industry geologistSecretary, Port Huon Progress Association Lives near a salmon company's hatchery facilityDr Rayne AllinsonHistorian, former university academic, authorFirst-time environmental campaigner and state election candidate after mass salmon die-off polluted her local beach in 2025. Employed by newly elected MP Peter George's electoral office in 2025.EXPERT WITNESSESProfessor Jeff RossSenior researcherFisheries and Aquaculture CentreInstitute of Marine & Antarctic StudiesUniversity of Tasmania Christine Coughanowr Water quality management consultantCo-chair, Tasmania Independent Science CouncilFounder and former director, Derwent Estuary Program partnershipINDUSTRY REPRESENTATIVEDr John WittingtonCEO, Salmon TasmaniaFormer CEO, Blue Economy Cooperative Research Centre (CRC)Former Secretary of the Department of Primary Industries, Parks Water and Environment, TasmaniaAUDIENCEMembers of the Huon Valley community and surrounds. The call-out for audience was made on ABC Hobart, ABC Radio National, and The Cygnet. Huon & Channel Classifieds.ACKNOWLEDGEMENTSThanks to Huon Valley Council for granting the ABC access to The Palais Theatre in Franklin for this event.Thanks to Jo Spargo and the ABC Hobart team for supporting this Citizen Jury event.Thanks to Huon Aquaculture staff for a tour of their hatchery facility and salmon pens for the Citizen Jury members and ABC Citizen Jury team.FURTHER INFORMATIONTasmanian Salmon Farming Data (Salmon Portal)Fin-Fish Farming in Tasmania Legislative Council Inquiry report (2022)How many salmon farms are there in Tasmania — and who owns them? (ABC News, 2025)Massive fish deaths in Tasmanian salmon farms to be investigated (ABC 730, 2025)Tasmanian salmon industry reeling from largest-ever fish deaths event as EPA launches investigation (ABC News, 2025)

In 1975, aged just 29, she wrote a bestselling book that changed Australia. Since then, she's courted controversy and acclaim, but Anne Summers has never given up the fight for gender equality.This conversation was recorded live at the 2025 Sydney Writers' Festival.SpeakersDr Anne SummersAuthor, Damned Whores and God's Police, Ducks on the Pond: An Autobiography 1945-1976, The Misogyny Factor, and many moreProfessor of domestic and family violence, University of Technology SydneyJournalist, editor, political advisor, advocateDr Alecia Simmonds (host)Associate Professor in Law, University of Technology SydneyAuthor, Courting: An Intimate History of Love and the Law, and Wild Man: The True Story of a Police Killing, Mental Illness and the LawFurther information:Tenacity and two squat houses — how an Australian movement was born for women leaving violenceBig Ideas, ABC Radio National, Monday 6 May 2024Baby boycott — the fertility crisis and the big decisionBig Ideas, ABC Radio National, Thursday 26 June 2025