#485 – David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

Lex Fridman PodcastNovember 17, 2025

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  • A commercial fusion target needs milestones beyond hot plasma

    Posted by seed07 on October 18, 2026 at 7:01 am

    David Kirtley explains plasma control, extreme temperatures, energy conversion, and Helion's commercial ambitions. A demonstration can validate one part of the system without proving reliable net electricity, maintenance, or economic operation. Credibility therefore depends on a sequence of engineering milestones, not one visually impressive plasma event.

    After Poddy editorial starter Based on the episode chapter notes.

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