Uploaded January 2023 | Updated September 2026, 2 weeks ago

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Dennis Whyte is a nuclear scientist at MIT and the director of the MIT Plasma Science and Fusion Center. Please support this podcast by checking out our sponsors:
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EPISODE LINKS:
Dennis's Twitter: twitter.com/MIT_Fusion
Dennis's LinkedIn: linkedin.com/in/dennis-whyte-33474a54
Dennis's Website: https://www.psfc.mit.edu/whyte
SPARC: https://www.psfc.mit.edu/sparc
MIT Plasma Science and Fusion Center: https://www.psfc.mit.edu
MIT Plasma Science and Fusion Center's YouTube: youtube.com/@mitplasmascienceandfusionc6211
Commonwealth Fusion Systems: https://cfs.energy
Commonwealth Fusion Systems YouTube: youtube.com/@CommonwealthFusionSystems

PODCAST INFO:
Podcast website: lexfridman.com/podcast
Apple Podcasts: apple.co/2lwqZIr
Spotify: spoti.fi/2nEwCF8
RSS: lexfridman.com/feed/podcast
Full episodes playlist: youtube.com/playlist?list=PLrAXtmErZgOdP_8GztsuKi9nrraNbKKp4
Clips playlist: youtube.com/playlist?list=PLrAXtmErZgOeciFP3CBCIEElOJeitOr41

OUTLINE:
0:00 - Introduction
0:32 - Nuclear fusion
18:31 - e=mc^2
32:58 - Fission vs fusion
38:10 - Nuclear weapons
41:56 - Plasma
49:07 - Nuclear fusion reactor
1:04:27 - 2022 nuclear fusion breakthrough explained
1:25:04 - Magnetic confinement
1:44:14 - ITER
1:49:01 - SPARC
2:03:00 - Future of fusion power
2:11:33 - Engineering challenges
2:30:14 - Nuclear disasters
2:34:58 - Cold fusion
2:49:14 - Kardashev scale
2:58:38 - Advice for young people

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