
Robinson's Podcast 235 - Janna Levin: How to Survive a Black Hole
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Nov 17, 2024 Janna Levin is a Professor of Physics and Astronomy at Barnard College and director of the Science Studios at Pioneer Works. She dives into the captivating world of black holes, discussing their theoretical origins and the misconceptions surrounding them. Learn how they form and their significance in the universe, including their role in the potential fate of the cosmos. Levin also highlights the importance of collaboration in scientific discovery and explains why black holes are crucial to our understanding of gravity and the very fabric of space-time.
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Holography Packs Black Hole Information On The Surface
- Holography suggests black hole information is encoded on the horizon area, not the interior volume.
- Leonard Susskind's ideas (complementarity, holography) helped drive thinking that information may be preserved on the surface.
Theoretical Proliferation Is Not Unscientific
- String theory's landscape removed the hope for a single unique vacuum, producing vast numbers of possible universes.
- Janna Levin argues exploring such theoretical frontiers is valid despite limited experimental tests, citing past surprises like the CMB and LIGO.
Go Near A Bigger Black Hole To Stay Safe
- If visiting a black hole, choose a larger one because tidal forces are gentler and crossing the horizon is calmer.
- For a stellar-mass black hole you'd need to resist strong tides; supermassive holes let you orbit safely within tens of kilometers.




