
300: Tasty, Solid State Donuts
In this episode Sean Farrell and his brother Matt discuss the hype and controversy surrounding the so‑called "donut" solid‑state battery unveiled at CES, dissecting the lofty claims of 400 Wh/kg energy density and 100,000‑cycle life that many deem physically impossible. They explore how the tech community’s rapid scramble for coverage has led to mixed messages, accusations of a scam, and a broader conversation about transparency in emerging battery technologies. Guest insights from YouTube creators like Alec Watson and comments from listeners highlight the tension between excitement for breakthrough energy storage and the need for rigorous verification. The brothers also touch on the challenges of turning technical debates into actionable policy or consumer guidance.

292: Move Over Perovskite - There’s a New Solar Kid in Town
In this episode, Matt and Sean Ferrell shift focus from perovskite to kesterite, a newer solar‑cell material that could become a cheaper, less toxic alternative to current technologies. They explain kesterite’s historical roots, its manufacturing challenges, and why it may...