The inventor of the Super Soaker, Dr. Lonnie Johnson, joins Matt to talk about his most ambitious project yet: the JTEC, a heat engine with no moving parts that converts low-grade waste heat straight into electricity. They get into how it actually works, why Johnson thinks it could run far more efficiently than what we use today, and the long road from a 2003 idea to the first commercial unit. Plus how a billion-dollar water gun quietly funded a quarter-century of clean-energy research.Chapters:00:00: Intro05:06: Dr. Lonnie Johnson Interview32:36: Previous Episode FeedbackWatch on YouTube: https://www.youtube.com/watch?v=LhbPajWdgUkSupport the show directly: https://stilltbd.fm/join/Audio version of the podcast: https://stilltbd.fmYouTube version of the podcast: https://www.youtube.com/@stilltbdYouTube membership: https://www.youtube.com/channel/UC4-aWB84Bupf5hxGqrwYqLA/joinGet in touch: https://stilltbd.fm/contact/Follow us on:Mastodon - https://mastodon.social/@mattferrellBluesky - https://bsky.app/profile/mattferrell.bsky.socialUndecided with Matt Ferrell: https://www.youtube.com/@undecidedtechnology Hosted on Acast. See acast.com/privacy for more information.

Matt sat down with Jorge Diaz Schneider, CEO of Ion Storage Systems, to talk about their anode-less, ceramic-based solid-state battery that doesn't swell or need pressure to work. We get into why they're chasing consumer electronics instead of EVs, the new continuous manufacturing line they just fired up, and why so many solid-state startups have over-promised and flamed out. It's an honest look at where this technology really stands in 2026 … and where it's headed.This presentation is for informational and technical discussion purposes only and does not constitute an offer to sell, or a solicitation of an offer to buy, any securities or a recommendation regarding any investment, financing or strategic transaction. Statements regarding future product development, commercialization, market opportunities, manufacturing scale-up, customer adoption or future performance are forward-looking, subject to risks and uncertainties, and may differ materially from actual results. The company undertakes no obligation to update such statements except as required by law.Chapters:00:00 - Intro01:24 - Jorge Diaz Schneider InterviewWatch on YouTube: https://www.youtube.com/watch?v=XbnuBbvX5_USupport the show directly: https://stilltbd.fm/join/Audio version of the podcast: https://stilltbd.fmYouTube version of the podcast: https://www.youtube.com/@stilltbdYouTube membership: https://www.youtube.com/channel/UC4-aWB84Bupf5hxGqrwYqLA/joinGet in touch: https://stilltbd.fm/contact/Follow us on:Mastodon - https://mastodon.social/@mattferrellBluesky - https://bsky.app/profile/mattferrell.bsky.socialUndecided with Matt Ferrell: https://www.youtube.com/@undecidedtechnology Hosted on Acast. See acast.com/privacy for more information.

Matt and Sean talk to Dave Borlace from the YouTube channel, Just Have a Think, to discuss the current state of the renewable energy transition in the UK and the US.Dave’s YouTube channel: https://www.youtube.com/@JustHaveaThinkChapters:00:00: Intro01:47: Dave Borlace Interview59:15: Previous Still TBD Episode Feedback01:02:44: Undecided Episode FeedbackWatch on YouTube: https://www.youtube.com/watch?v=0bw2IU73RG4Support the show directly: https://stilltbd.fm/join/Audio version of the podcast: https://stilltbd.fmYouTube version of the podcast: https://www.youtube.com/@stilltbdYouTube membership: https://www.youtube.com/channel/UC4-aWB84Bupf5hxGqrwYqLA/joinGet in touch: https://stilltbd.fm/contact/Follow us on:Mastodon - https://mastodon.social/@mattferrellBluesky - https://bsky.app/profile/mattferrell.bsky.socialUndecided with Matt Ferrell: https://www.youtube.com/@undecidedtechnology Hosted on Acast. See acast.com/privacy for more information.

Matt and Sean talk to Zack Nelson of JerryRiggedEverything about building a new wheelchair manufacturing business, solar DIY, and the history and future of his Youtube channel.Chapters:00:00 - Intro02:08 - Zach Nelson Interview37:32 - Supercritical CO2 Turbines DiscussionWatch on YouTube: https://www.youtube.com/watch?v=quA0gBAFEQkSupport the show directly: https://stilltbd.fm/join/Audio version of the podcast: https://stilltbd.fmYouTube version of the podcast: https://www.youtube.com/@stilltbdYouTube membership: https://www.youtube.com/channel/UC4-aWB84Bupf5hxGqrwYqLA/joinGet in touch: https://stilltbd.fm/contact/Follow us on:Mastodon - https://mastodon.social/@mattferrellBluesky - https://bsky.app/profile/mattferrell.bsky.socialUndecided with Matt Ferrell: https://www.youtube.com/@undecidedtechnology Hosted on Acast. See acast.com/privacy for more information.

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 - Intro11:26 - Karl Rábago InterviewSupport the show directly: https://stilltbd.fm/join/Audio version of the podcast: https://stilltbd.fmYouTube version of the podcast: https://www.youtube.com/stilltbdpodcastYouTube membership: https://www.youtube.com/channel/UC4-aWB84Bupf5hxGqrwYqLA/joinGet in touch: https://stilltbd.fm/contact/Follow us on:Mastodon - https://mastodon.social/@mattferrellBluesky - https://bsky.app/profile/mattferrell.bsky.socialUndecided with Matt Ferrell: https://www.youtube.com/@undecidedtechnologyWatch on YouTube: https://www.youtube.com/watch?v=gfCZL-vwWtA Hosted on Acast. See acast.com/privacy for more information.

https://youtu.be/nR8qn3cD1jQMatt 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 FeedbackYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information.

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 DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information.

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 DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information.

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 InterviewYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information.

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 DiscussionYouTube 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 ★ Hosted on Acast. See acast.com/privacy for more information.