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Lex Fridman Podcast
Long-form conversations with researchers, founders, scientists, and public figures across AI, technology, science, philosophy, and geopolitics.
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David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy | Lex Fridman Podcast #485
Helion’s pulsed field-reversed configuration aims to convert charged fusion products directly into electricity, targeting theoretical efficiencies of 80–85% rather than a 30–35% steam cycle.A 2023 Microsoft agreement targets first electrons from a grid-connected plant in 2028, but engineering, manufacturing, efficiency, siting and regulatory execution remain decisive risks.