Still To Be Determined
Join Matt Ferrell from the YouTube Channel, Undecided, and his brother Sean Ferrell as they discuss electric vehicles, renewable energy, smart technologies, and how they impact our lives.
Still TBD: Matt Ferrell and Sean Ferrell · Matt Ferrell
Show overview
Still To Be Determined has been publishing since 2020, and across the 6 years since has built a catalogue of 305 episodes, alongside 1 trailer or bonus episode. That works out to roughly 160 hours of audio in total. Releases follow a weekly cadence.
Episodes typically run twenty to thirty-five minutes — most land between 24 min and 39 min — though episode length varies meaningfully from one episode to the next. None of the episodes are flagged explicit by the publisher. It is catalogued as a EN-language Technology show.
The show is actively publishing — the most recent episode landed yesterday, with 15 episodes already out so far this year. Published by Matt Ferrell.
From the publisher
Join Matt Ferrell from the YouTube Channel, Undecided, and his brother Sean Ferrell as they discuss electric vehicles, renewable energy, smart technologies, and how they impact our lives. Still TBD continues the conversation from the Undecided YouTube channel.
Latest Episodes
View all 305 episodes304: JerryRigged Wheelchairs and More with Zack Nelson
303: Karl Rábago and the Internet of Electricity
302: The Future of Food with Nona Yehia
301: Talking Donuts & Batteries with Ricky Roy and Ryan Inis Hughes
https://youtu.be/HicyIaKqRgkMatt talks with Two Bit Da Vinci and Ziroth about Donut Lab’s new battery, the controversy around it, and what they think it actually might be.Watch the Undecided with Matt Ferrell episode, The Breakthroughs My Net Zero Home is Missing https://youtu.be/hb2x5VcUT0I?list=PLnTSM-ORSgi7FwYRnWkpCSkAeFOzrgh5h(00:00) - - Intro (01:46) - - Donut Lab Conversation (01:01:40) - - Home Regrets Discussion YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
300: Tasty, Solid State Donuts
https://youtu.be/f67J9QO5LPYMatt and Sean talk about Donut Lab's solid state batteries, connecting with other YouTubers, and your questions. Watch the Undecided with Matt Ferrell episode, Why Everyone's Wrong About This Solid-State Battery https://youtu.be/C8ljwigh9jA?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback (14:26) - - Donut Labs Solid State Battery Discussion YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
299: Making Connections with Alec Watson
https://youtu.be/ve_k8pNY1sQMatt and Sean talk with Alec Watson (TechnologyConnections) about future tech, current trends and dead ends, and why dishwashers are so fascinating.(00:00) - (00:00) - - Intro (02:36) - - TechnologyConnections Interview YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
298: Why Waiting for Better Solar Costs You More
https://youtu.be/lnu76C5Qd68Matt and Sean talk about whether it’s a good idea or not to wait for next gen solar technology, or just pull the trigger and get what’s available today.Watch the Undecided with Matt Ferrell episode, Why Waiting for Better Solar Costs You More https://youtu.be/w2r9_0NxTW8?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback (13:19) - - To Perovskite or Not Perovskite Discussion YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
297: Heat Pump Comparison & Paul Braren Interview
https://youtu.be/v1o7RY43K-EMatt and Sean talk about heat pump comparisons, and a full long-form discussion with Paul Braren from TinkerTry.comWatch the Undecided with Matt Ferrell episode, Did I Get the Wrong Heat Pump: Geothermal vs Air Source https://youtu.be/CPwQTUaU-jI?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQA couple of posts about our heat pump comparison on TinkerTry.com:https://tinkertry.com/planning-for-heat-pump-comforthttps://tinkertry.com/geothermal-vs-air-source-heat-pumps-feat-undecided-and-tinkertry(00:00) - - Intro (02:35) - - Undecided Feedback (09:23) - - Paul Braren Interview YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
296: Flywheels! Getting All Spun Up
https://youtu.be/HHX1K-nV8OkMatt and Sean talk about flywheels, mechanical energy storage, and something unexpected that flew out of the comments.Two Bit Davinci video about the flywheel bus: https://youtu.be/LHyUDihL_FQ?si=xVp7qfUP82jm6wQlWatch the Undecided with Matt Ferrell episode, How 40-Ton Spinning Wheels Are Saving The Power Grid https://youtu.be/Z95t-f-0IjI?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback (08:04) - - Flywheels Discussion (13:56) - - A Surprise Conversation YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
295: Why Aluminum Batteries?
Matt and Sean talk about Aluminum as another battery option, and your comments.Watch the Undecided with Matt Ferrell episode, What This Aluminum‑Ion Breakthrough Means for You https://youtu.be/svHeBLgpRQs?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback (15:59) - - Aluminum Battery Discussion YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
294: Heat Pump: Scams?
https://youtu.be/9M5cISgMNMMMatt and Sean get pumped talking about 3D Printing, Heat Pumps, and your comments.Watch the Undecided with Matt Ferrell episode, Are Heat Pumps a Scam? https://youtu.be/K2c6Rucbi84?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback (25:58) - - Heat Pumps Discussion YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
293: Sodium Battery Fade
https://youtu.be/BQoniKPE8NwMatt and Sean talk about sodium batteries, why lithium prices are falling, and your comments.Watch the Undecided with Matt Ferrell episode, The 90% Price Crash That Changed Everything https://youtu.be/nrTCgZmUFCY?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback (14:39) - - Sodium Batteries Discussion YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
292: Move Over Perovskite - There’s a New Solar Kid in Town
https://youtu.be/3fntze01h_kMatt and Sean talk about a new material we might see in solar panels, and Matt’s invasion on Hank Green.Watch the Undecided with Matt Ferrell episode, Why This Solar Breakthrough Matters More Than Perovskite https://youtu.be/F_OPrOpccJs?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback (16:23) - - Kesterite Discussion YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
291: CES 2026 Roundup
https://youtu.be/iSGqe9lefQIMatt and Sean talk about Matt’s CES 2026 visit, the good, the bad, the funny … including Donut Labs solid state battery.Watch the Undecided with Matt Ferrell episode, The Most Controversial Battery at CES 2026 https://youtu.be/Kt4c0o_3eyY?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback (12:17) - - CES 2026 Discussion YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
290: State of Perovskite Solar Roundup
https://youtu.be/SrkuzIo1liMMatt and Sean talk about the current status of perovskite solar progress, plus your responses to our previous episodes.Watch the Undecided with Matt Ferrell episode, What Solar’s 2025 Breakthroughs Mean for 2026 https://youtu.be/FffKMMnisu4?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback (15:00) - - State of Solar Discussion YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
289: Salty AND Sweet? Desalination + Power Plants
https://youtu.be/PA2Wc_pxZ6YMatt and Sean talk about desalination and osmotic power production, plus your responses to our previous episodes.Watch the Undecided with Matt Ferrell episode, The Ocean's Invisible 15,000 TWh Goldmine https://youtu.be/kko09WIC6yc?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback (20:20) - - Desalination and Osmotic Power Discussion YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
288: Perovskite? All Right!
https://youtu.be/HjYEgF598CIMatt and Sean talk about perovskite solar panels, silver prices, and other new (old) issues.Watch the Undecided with Matt Ferrell episode, How This Perovskite Breakthrough Could Change Solar Forever https://youtu.be/8Eh9m4U7GGk?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro & Feedback (22:00) - - Perovskite Discussion YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
287: AI’s Impact on our Electric Bills
https://youtu.be/kWC8Cylbu5AMatt and Sean talk about the impact of AI on our electric bills and more.Watch the Undecided with Matt Ferrell episode, How AI is Destroying Your Electric Bill https://youtu.be/n8m1BCzvGCA?list=PLnTSM-ORSgi7oiN-erZtwugd0muTdQXnU(00:00) - - Intro & Feedback (09:03) - - AI Costs Discussion YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
286: Plastic Recycling Advancements
https://youtu.be/t6Lc9WS60vAMatt and Sean talk about recycling plastic (will we ever get there?), simple home energy solutions (insulation!), and more.Watch the Undecided with Matt Ferrell episode, The Recycling Breakthrough That Doesn't Need Sorting https://youtu.be/D9Hd4KMoxds(00:00) - - Intro & Feedback (16:21) - - Plastic Recycling Discussion YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★
285: Heat Pump It Up! Geothermal 2 Years Later
https://youtu.be/FmTo8ZkfZ68Matt and Sean talk about Matt’s geothermal heat pump experience, digging wells, and the meaning of “young.”Watch the Undecided with Matt Ferrell episode, How My Geothermal Heat Pump Really Performed (2 Years) https://youtu.be/DTb7TKJzr5g?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ(00:00) - - Intro (05:22) - - Feedback (17:33) - - 2 Years of Geothermal Discussion YouTube version of the podcast: https://www.youtube.com/stilltbdpodcastGet in touch: https://undecidedmf.com/podcast-feedbackSupport the show: https://pod.fan/still-to-be-determinedFollow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmfUndecided with Matt Ferrell: https://www.youtube.com/undecidedmf ★ Support this podcast ★