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David Kirtley: belief

17 Nov 2025 Lex Fridman Podcast #485 – David Kirtley: Nuclear Fusion, Plasma Physics, and the Future of Energy

“What does it unlock to have power 100 times the output that we actually do here on Earth right now? And I think that’s pretty transformational.”

— David Kirtley

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Everything needed to verify it.

Speaker
David Kirtley
Attribution
Verified speaker
Claim type
belief
Recorded
17 Nov 2025
Publisher
Lex Fridman Podcast

Transcript context

…Right. But if, as some research says, that there’s 100 million to a billion years of fusion fuel on the Earth, we have room to go, and that’s at today’s use. So 100 times today’s use, we still have tons of fuel. Let’s go do it. And what does that unlock? What does it unlock to have power 100 times the output that we actually do here on Earth right now? And I think that’s pretty transformational. Do we have those huge AI data centers? Do we have brains that can now think at rapid speeds and now innovate? I think that’s a pretty powerful future. Yeah, I can just imagine a giant AI brain and rockets just constantly shipping more and more humans out into space, into colonizing space, and we’re expanding out into the universe. I mean, it’s a beautiful… obviously there’s a lot to be concerned about. Technology in itself is always a double-edged sword. There’s always a concern that we humans, in the power we create, will also destroy ourselves in obvious ways and less than obvious ways. I’ve been spending a lot of time in nature. And you become distinctly aware that there’s something truly special about the simplicity, the balance that is achieved by nature. In some sense, we disturb that balance by creating sophisticated technologies. But in another sense, we’re building something in the spirit of nature that’s more and more beautiful and allows us humans to flourish in a richer and richer way. So, a double-edged sword.…

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