Still To Be Determined

Still TBD: Matt Ferrell and Sean Ferrell
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Apr 1, 2026 • 1h 12min

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 ★
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Mar 25, 2026 • 28min

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 ★
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Mar 18, 2026 • 1h 2min

299: Making Connections with Alec Watson

Alec Watson, creator of Technology Connections who makes deep, explanatory videos about everyday tech, appliances, and clean tech. He unpacks why dishwashers and detergent pods frustrate consumers. He traces how tinkering led to long-form tech explainers. He dives into renewable energy, rooftop solar tradeoffs, virtual power plants, and spotting tech that tricks people.
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Mar 11, 2026 • 24min

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 ★
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Mar 4, 2026 • 50min

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 ★
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Feb 25, 2026 • 21min

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 ★
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Feb 18, 2026 • 30min

295: Why Aluminum Batteries?

They debate aluminum as an alternative battery chemistry and why its fast-response traits suit grid stability and EV charging stations. They unpack what actually fuels battery fires and caution against oversimplified safety claims. Listeners share DIY solar and home energy experiences while the hosts weigh difficulty and when to call a pro.
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Feb 11, 2026 • 42min

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 ★
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Feb 4, 2026 • 39min

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 ★
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Jan 28, 2026 • 31min

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 ★

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