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2025-12-14 21:24:47 UTC
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John Carlos Baez on Nostr: nprofile1q…64t9g - the universe is definitely not a black hole, but if it weren't ...

- the universe is definitely not a black hole, but if it weren't expanding it'd be close to the brink of collapsing into a black hole. I discussed this sort of thing with Philip Gibbs around 59 minutes into this video: he points out that the universe could in theory be a white hole.

https://www.youtube.com/watch?v=ULjLGTd3-4s