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Dr. David Kirtley on Lex Fridman: Why the H-bomb is fission

Why 90 percent of hydrogen bomb energy still comes from fission, not fusion; Helion uses pulsed magnetoinertial and deuterium from seawater.

Lex FridmanhostDavid Kirtleyguest
Nov 17, 20252h 36mWatch on YouTube ↗

CHAPTERS

  1. 0:00 – 3:14

    Introduction

  2. 3:14 – 13:14

    Nuclear fission vs fusion

  3. 13:14 – 18:28

    Physics of E=mc^2

  4. 18:28 – 23:50

    Is nuclear fusion safe?

  5. 23:50 – 30:17

    Chernobyl

  6. 30:17 – 32:12

    Geopolitics

  7. 32:12 – 39:07

    Extreme scenarios

  8. 39:07 – 1:11:59

    How nuclear fusion works

  9. 1:11:59 – 1:17:00

    Extreme temperatures

  10. 1:17:00 – 1:28:54

    Fusion control and simulation

  11. 1:28:54 – 2:02:59

    Electricity from fusion

  12. 2:02:59 – 2:09:52

    First fusion power plant in 2028

  13. 2:09:52 – 2:20:16

    Energy needs of GPU clusters

  14. 2:20:16 – 2:28:12

    Kardashev scale

  15. 2:28:12 – 2:36:54

    Fermi Paradox

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