- 54 minutes 48 seconds303: Karl Rábago and the Internet of Electricity
Matt and Sean talk to Karl Rábago about the internetification of the electrical grid, and what it means for the future of owning solar panels and energy.
- 00:00 - Intro
- 11:26 - Karl Rábago Interview
Support the show directly: https://stilltbd.fm/join/
Audio version of the podcast: https://stilltbd.fm
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Watch on YouTube: https://www.youtube.com/watch?v=gfCZL-vwWtA
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29 April 2026, 1:17 pm - 41 minutes 26 seconds302: The Future of Food with Nona Yehia
https://youtu.be/nR8qn3cD1jQ
Matt and Sean talk to Nona Yehia (Vertical Harvest) about vertical farming, technological “growth”, and the future of food.
Watch the Undecided with Matt Ferrell episode, Why This Vertical Farm is 500x More Efficient Than Farming https://youtu.be/8sOEB2m0m9Y?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ
- (00:00) - - Intro
- (00:45) - - Nona Yehia Interview
- (37:50) - - Vertical Harvest Feedback
YouTube version of the podcast: https://www.youtube.com/stilltbdpodcast
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15 April 2026, 1:17 pm - 1 hour 11 minutes301: Talking Donuts & Batteries with Ricky Roy and Ryan Inis Hughes
https://youtu.be/HicyIaKqRgk
Matt 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/stilltbdpodcast
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1 April 2026, 1:17 pm - 27 minutes 30 seconds300: Tasty, Solid State Donuts
https://youtu.be/f67J9QO5LPY
Matt 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
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25 March 2026, 1:17 pm - 1 hour 1 minute299: Making Connections with Alec Watson
https://youtu.be/ve_k8pNY1sQ
Matt 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/stilltbdpodcast
Get in touch: https://undecidedmf.com/podcast-feedback
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18 March 2026, 1:17 pm - 23 minutes 42 seconds298: Why Waiting for Better Solar Costs You More
https://youtu.be/lnu76C5Qd68
Matt 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
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11 March 2026, 1:17 pm - 49 minutes 44 seconds297: Heat Pump Comparison & Paul Braren Interview
https://youtu.be/v1o7RY43K-E
Matt and Sean talk about heat pump comparisons, and a full long-form discussion with Paul Braren from TinkerTry.com
Watch the Undecided with Matt Ferrell episode, Did I Get the Wrong Heat Pump: Geothermal vs Air Source https://youtu.be/CPwQTUaU-jI?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ
A couple of posts about our heat pump comparison on TinkerTry.com:
https://tinkertry.com/planning-for-heat-pump-comfort
https://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/stilltbdpodcast
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4 March 2026, 2:17 pm - 20 minutes 39 seconds296: Flywheels! Getting All Spun Up
https://youtu.be/HHX1K-nV8Ok
Matt 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=xVp7qfUP82jm6wQl
Watch 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/stilltbdpodcast
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25 February 2026, 2:17 pm - 30 minutes 15 seconds295: 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
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18 February 2026, 2:17 pm - 42 minutes 28 seconds294: Heat Pump: Scams?
https://youtu.be/9M5cISgMNMM
Matt 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/stilltbdpodcast
Get in touch: https://undecidedmf.com/podcast-feedback
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11 February 2026, 2:17 pm - 38 minutes 42 seconds293: Sodium Battery Fade
https://youtu.be/BQoniKPE8Nw
Matt 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/stilltbdpodcast
Get in touch: https://undecidedmf.com/podcast-feedback
Support the show: https://pod.fan/still-to-be-determined
Follow us on X: @stilltbdfm @byseanferrell @mattferrell or @undecidedmf
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4 February 2026, 2:17 pm - More Episodes? Get the App