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What Janna Levin thinks about energy

@janna-levin · 24 positions · 0 changes of mind

Theoretical cosmologist, professor of physics and astronomy at Barnard College of Columbia University, and chief science officer of Pioneer Works.

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2 dated positions, 2025, in their own words. Our reading of what Janna Levin has said — not written or endorsed by them.

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  1. Our readingThe hardest step on the road from chemistry to us was multicellularity, and it was strictly a problem of energetics.

    Their wordsI would say, multicellularity which is strictly an energy problem, I think. Again, it’s just like can electrons flow the right way. And is it energetically favorable for multicellularity to exist because if it’s energetically expensive, it’s not going to succeed.

    ↗Janna Levin: Black Holes, Wormholes, Aliens, Paradoxes & Extra Dimensions | Lex Fridman Podcast #468youtube.com 18th of 24 in this recording

  3. Our readingCalling dark matter and dark energy invented names for physicists' ignorance gets it exactly backwards: only extraordinary precision let us see that they are missing.

    Their wordsAnd so I would say, yes, we are just giving proxy names to things we don’t understand, but to dismiss that as some kind of, “Oh, they just don’t know…” It is actually quite the opposite.

    ↗Janna Levin: Black Holes, Wormholes, Aliens, Paradoxes & Extra Dimensions | Lex Fridman Podcast #468youtube.com 20th of 24 in this recording