BSV Podcast 0090: Fusion Deep Dive

Balerion General Partner Phil Scully and Senior Associate Aidan Daoussis sit down with Advisor Doug McAdams for a comprehensive discussion on fusion energy. The conversation covers the fundamentals of nuclear systems - radioisotope power, fission, and fusion - before diving into fusion approaches, fuel cycles, and the path to commercialization. Doug highlights tritium supply constraints, breeding strategies, and key “picks and shovels” opportunities, while also exploring global competition, leading companies, and the long-term potential of fusion for both terrestrial power and space propulsion.Timestamped Overview00:00 – Introduction and Doug’s background in nuclear and deep tech02:00 – The lost decades of nuclear and the return of hardware04:30 – Rise of deep tech investing and nuclear resurgence07:00 – Why fusion matters now08:20 – Nuclear energy explained: RPS, fission, and fusion11:00 – Energy density and why nuclear is different12:00 – Fusion basics and Q > 113:00 – Controlled vs uncontrolled fusion14:00 – Why pursue fusion alongside fission15:30 – Fuel cycles: deuterium, tritium, helium-316:40 – Fusion power potential and scaling17:20 – Fuel consumption and continuous supply18:00 – How fusion generates electricity19:30 – Aneutronic fusion and future concepts20:00 – Fusion on Earth vs in space21:00 – Nuclear propulsion: NEP, NTP, fusion22:30 – Ion propulsion and propellants24:00 – China and the global fusion race26:00 – Fusion ecosystems: MIT, Princeton, Europe29:00 – Key leaders and companies30:30 – Plasma explained32:00 – Core challenges in fusion33:00 – Lawson criterion35:00 – Day-to-day work in fusion companies37:00 – Path to commercialization39:00 – Timeline to commercial fusion (2030–2040)42:00 – Tritium constraints and opportunities44:00 – Helium-3 and aneutronic fusion45:30 – Breeding blankets47:00 – Picks-and-shovels investing49:00 – Magnet technology50:30 – Leading fusion startups52:00 – Fusion propulsion54:00 – Magnetic vs laser fusion56:00 – Historical nuclear propulsion58:00 – AI in fusion59:30 – U.S. vs China01:01:00 – Notable companies01:04:00 – Industry outlook01:06:30 – What inning are we in?01:08:00 – Closing thoughts This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit balerionspace.substack.com