PODCAST · technology
Still To Be Determined
by Still TBD: Matt Ferrell and Sean Ferrell
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.
Episodes
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307: From Super Soakers to Heat Engines with Dr. Lonnie Johnson
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304: JerryRigged Wheelchairs and More with Zack Nelson
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 - Intro 02:08 - Zach Nelson Interview 37:32 - Supercritical CO2 Turbines Discussion Watch on YouTube:...
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302: 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...
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301: 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...
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300: 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...
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299: 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:...
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298: 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...
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297: 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...
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296: 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...
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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...
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294: 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...
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293: 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) - -...
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292: Move Over Perovskite - There’s a New Solar Kid in Town
https://youtu.be/3fntze01h_k Matt 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...
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291: CES 2026 Roundup
https://youtu.be/iSGqe9lefQI Matt 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...
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290: State of Perovskite Solar Roundup
https://youtu.be/SrkuzIo1liM Matt 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...
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289: Salty AND Sweet? Desalination + Power Plants
https://youtu.be/PA2Wc_pxZ6Y Matt 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...
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288: Perovskite? All Right!
https://youtu.be/HjYEgF598CI Matt 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...
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287: AI’s Impact on our Electric Bills
https://youtu.be/kWC8Cylbu5A Matt 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)…
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286: Plastic Recycling Advancements
https://youtu.be/t6Lc9WS60vA Matt 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)…
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285: Heat Pump It Up! Geothermal 2 Years Later
https://youtu.be/FmTo8ZkfZ68 Matt 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)...
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284: Shocking Zinc Battery News
https://youtu.be/Xx9sCiVZxJ4 Matt and Sean talk about a change in what research says is good for zinc batteries, and more topics from last week's episode. Watch the Undecided with Matt Ferrell episode, The Surprising Battery Discovery No One Saw Coming...
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283: Sweating Solar Panels, Upgrade Woes, and More
https://youtu.be/Ay_Yr2aI9tw Matt and Sean talk about increasing solar power efficiency by making the panels (ew) sweat, and more topics from last week’s episode. Watch the Undecided with Matt Ferrell episode, How This Hydrogel Gives Us 12% More Solar Efficiency...
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282: Bifacial Solar Panels Advacements
https://youtu.be/Ulwh9PMxI_M Matt and Sean talk about solar power generation from two-faced panels … no, not lying panels, but bifacial solar panels with some big updates that should help them become more common. Watch the Undecided with Matt Ferrell episode, How the Back of a New Solar Panel…
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281: Digitizing Home Electrification - Zero Homes CEO Grant Gunnison
https://youtu.be/wcTP2wXrlHM Matt interviews Grant Gunnison, CEO and founder of Zero Homes, about their innovative approach to home electrification. Grant shares how his background as an MIT engineer and NASA contractor, combined with experience running his family's contracting business, led him…
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280: Seaweed? More like See Opportunities!
https://youtu.be/eUVGEhhU5jM Matt and Sean talk about taking an unexpected environmental blight (Sargassum), and turning it into a renewable, useful (and profitable) resource. Watch the Undecided with Matt Ferrell episode, This Seaweed Was a Caribbean Disaster, Now It's Gold...
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279: How the U.S. is Losing the Renewable Race
https://youtu.be/hP682UrQY_E Matt and Sean talk about the Big Beautiful Bill, what its long term impacts might be on the renewable energy space, and how easy it might be to go in another direction. Watch the Undecided with Matt Ferrell episode, How the U.S. Just Handed the Renewable Future to…
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278: The Super Cheap Battery Revolution
https://youtu.be/CRqwU8hZg9A Matt and Sean talk about CATL’s claims at a massive breakthrough in sodium ion battery costs, and whether it might (or might not) find a place in the energy storage market. Watch the Undecided with Matt Ferrell episode, How CATL Made Batteries 90% Cheaper (And What...
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277: Quantum Computing - Is it Both Alive and Dead?
https://youtu.be/s2h-16Ia-Pk Matt and Sean talk about quantum computing … and when do we talk about what we don’t yet have? Watch the Undecided with Matt Ferrell episode, Why The Race for Quantum Supremacy Just Got Real https://youtu.be/L1kyvI2m6UY?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ (00:00)…
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276: Blood in the Machine - Biological Batteries?
Matt and Sean talk about bio-tech including possible blood batteries. Watch the Undecided with Matt Ferrell episode, How Nature is Powering This Battery Breakthrough https://youtu.be/LbprE3qROs0?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ (00:00) - - Intro (04:45) - - Feedback (15:41) - - Blood...
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275: Fusion Drilling for Geothermal Energy
Matt and Sean talk about Quaise, a geothermal energy company that’s pushing fusion tech into the ground. Literally. Watch the Undecided with Matt Ferrell episode, How Fusion Tech Just Changed Geothermal Energy Forever https://youtu.be/gO_LLqZfNdY?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ (00:00)…
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274: In Training - Regenerative “Braking” News
https://youtu.be/lI3EkZvx56w Matt and Sean talk about regenerative braking, and how it might power more than vehicles. Watch the Undecided with Matt Ferrell episode, The Most Overlooked Clean Energy Source… Is Under Your Feet https://youtu.be/Aubi3cK8Ym0?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ...
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273: Waste Not, Want Not
https://youtu.be/GwGnCQE98s0 Matt and Sean talk about using digestive waste (yes, it’s what you think it is) to increase sustainability. Yes, poo can be used to make better batteries. Watch the Undecided with Matt Ferrell episode, Why Manure and Urine Could Power the Future...
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272: A Fungus Among Us
https://youtu.be/7JoDmw1TCTA Matt and Sean talk about using mushrooms for food, packaging, clothing, and more. Can it truly replace bacon and boots? “No, Thorium Won’t Power Everything” video we talked about: https://youtu.be/iXz302oMphQ?si=7NgBLWm6s-UPj-NE Watch the Undecided with Matt Ferrell...
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271: Self-Repairing Solar Panels
https://youtu.be/qDQ3N51WYgQ Matt and Sean talk about solar panels that imitate the self-repairing traits of plants. Might this tech take hold, or is it too far away from practical applications? Watch the Undecided with Matt Ferrell episode, Why This Might Be the Last Solar Panel You’ll Ever Need...
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270: Mini Machines, Major Impact - Polyfloss Brings Plastic Recycling Home
https://youtu.be/dRkqXHvU71o The Polyfloss team is back with a game-changer: a mini plastic recycling machine small enough for your workshop. Matt reconnects with co-founders Audrey Gaulard, Émile De Visscher, and Christophe Machet to discuss how they're putting plastic recycling directly into...
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269: The Future of Thorium Nuclear Power - Copenhagen Atomics Interview
https://youtu.be/94r93XJ9BzA Matt had the chance to chat with Thomas Jam Pedersen from Copenhagen Atomics about their small modular thorium reactor that they’re bringing to the market. It’s an interesting conversation that covers everything from nuclear safety to why thorium may be a positive...
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268: Biocomputers - The Next Step for AI?
https://youtu.be/kAYdIpcDnZk Today is a very brainy conversation. Matt had the chance to chat with Dr. Kyle Wedgwood and research intern Wiktor Wiejak from University of Exeter in England. Wedgwood’s a mathematician specializing in neuroscience, and he’s using a computer from FinalSpark. Matt…
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267: AI Undermining AI
https://youtu.be/jLEO9Gbba0k Matt and Sean talk about the scramble to develop AI that could undermine the very underpinnings of … well… everything. Don’t panic. (Yet.) Watch the Undecided with Matt Ferrell episode, Why the AI Revolution Has a Fatal Flaw...
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266: Drinking Sea Water - Deep Ocean Desalination
https://youtu.be/UWOAjs7ruGI Matt and Sean talk about desalination efforts deep under the ocean, and how it may play a part in solving water shortages. Don’t get salty before taking a listen. Undersea cables article…
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265: Is Wave Power Generation the Future of Energy?
https://youtu.be/WoSE4ivjIv4 Matt and Sean talk about wave energy converters and power generation, and how in the long run it could outpace solar and wind as a sustainable, renewable energy source. Watch the Undecided with Matt Ferrell episode, How Waves Could Quietly Overtake Solar & Wind:...
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264: Structural Batteries - A Good Idea?
https://youtu.be/lE1-DprTJ0M Matt and Sean talk about a battery design that is both battery and the body structure of the device being powered. It’s not massless, but is two birds one … battery? Watch the Undecided with Matt Ferrell episode, The Strangest Battery Breakthrough Yet...
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263: A Very Magnetic Heat Pump - Julie Slaughter Interview
https://youtu.be/dnRSrU8Gwmc Matt had the chance to chat with Julie Slaughter from the Ames National Laboratory about their research into magnetocalorics (using magnets for heating and cooling). Do you think this is an attractive idea? Or does it repulse you? Watch the Undecided with Matt Ferrell...
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262: No More Lithium Batteries? Looks Good on Paper!
https://youtu.be/LOuj1LUNijU Matt and Sean talk about a move away from lithium by a major battery manufacturer, and a paper battery that might be the sheet. Why the interest in these new batteries? Watch the Undecided with Matt Ferrell episodes; Why This Paper Battery is Better Than You Think...
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261: Sulfur So Good: Talking AI & Lithium-Sulfur Batteries
https://youtu.be/5gs1Gr8BhQo Matt and Sean talk about how AI is impacting us today. As well as a recent change in lithium-sulfur battery research, and how that might change the energy storage market. Stinky sulfur may finally be leaving its mark. Watch the Undecided with Matt Ferrell episode, How...
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260: Icy Heat - Talking Ice Source Heat Pumps
https://youtu.be/Tq3IS1J3Lyo Matt and Sean talk about using ice to generate heat. Yes, it’s actually a thing, but does it make sense for the future of heating? Watch the Undecided with Matt Ferrell episode, How Can Ice Heat Your Home? Ice Source Heat Pumps!...
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259: Flow Battery Developments - Old Tech is Taking Off
https://youtu.be/XoHn9-42DI8 On today’s episode Matt & Sean are talking about flow batteries and how this old tech is finally starting to take off. But does it actually have a shot? Watch the Undecided with Matt Ferrell episode, Why Isn’t This Revolutionary Battery Everywhere?...
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258: Recycling Renewables - Problem Solved?
https://youtu.be/6GImikPccQY Matt and Sean talk about how recycling renewable energy tech is a major step forward, and what comes next. Do we have this problem solved? Watch the Undecided with Matt Ferrell episode, How We Solved Renewables BIGGEST Problem...
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257: Let’s Talk About Tech - Battery “Breakthroughs”
Matt and Sean talk about new battery research, potential shifts in cost, and why we’re having this conversation in the first place. Watch the Undecided with Matt Ferrell episode, Why This Ultra Cheap Battery Breakthrough Matters https://youtu.be/qZ8z5tFzuIw?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ...
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256: Props to Canada - Building Wind Turbines
https://youtu.be/Bif5xp62fyY Matt and Sean talk about the crazy logistics of building a Canadian wind-turbine project. How difficult is it to build a wind farm? Watch the Undecided with Matt Ferrell episode, The Hidden Work Behind Wind Energy...
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255: Ice Source Heat Pump?
https://youtu.be/ogtiwDEAKik Matt had the chance to chat with Dr. Ramin Mehdipour and Professor Seamus Garvey from the University of Nottingham about their research into ice source heat pumps. They have a novel idea for reusing the UK’s natural gas pipe network to deliver non-potable water into...
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ABOUT THIS SHOW
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.
HOSTED BY
Still TBD: Matt Ferrell and Sean Ferrell
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Frequently Asked Questions
How many episodes does Still To Be Determined have?
Still To Be Determined currently has 302 episodes available on PodParley. New episodes are automatically indexed when they're published to the podcast feed.
What is Still To Be Determined about?
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.
How often does Still To Be Determined release new episodes?
Still To Be Determined publishes regularly with 302 episodes available. Check the episode list for the typical release schedule.
Where can I listen to Still To Be Determined?
You can listen to Still To Be Determined on PodParley by clicking any episode. We provide an embedded audio player for direct listening, and you can also subscribe via your preferred podcast app using the RSS feed.
Who hosts Still To Be Determined?
Still To Be Determined is created and hosted by Still TBD: Matt Ferrell and Sean Ferrell.
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