Foretranimal's latest activity
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Foretranimal reacted to PeterDonis's post in the thread I I don't see how a black hole's event horizon can be crossed with
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True. But they can exist for a very, very, very, very, very long time. For example, the expected evaporation time by Hawking radiation... -
Foretranimal reacted to Dale's post in the thread I I don't see how a black hole's event horizon can be crossed with Like.
The standard Schwarzschild coordinates that you refer to in the second statement are on a different manifold than the Hawking spacetime...
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Foretranimal replied to the thread I I don't see how a black hole's event horizon can be crossed.Is that related to how, within a past/future spacetime diagram, you can take any perspective in the light cone and, with a geometric...
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Foretranimal replied to the thread I I don't see how a black hole's event horizon can be crossed.It may well be that I have faulty reasoning, and I have no idea. I'm trying to figure out why. Why do I think there is a relationship...
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Foretranimal replied to the thread I I don't see how a black hole's event horizon can be crossed.OK, and I don't doubt you. But I'm not trying to be right, I'm trying to get a better understanding of this. It may be wrong, but the...
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Foretranimal replied to the thread I I don't see how a black hole's event horizon can be crossed.Valid is the wrong word. Let me amend that to say both perspectives are real and exist. We have a 20-foot barn, with doors fore and...
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Foretranimal replied to the thread I I don't see how a black hole's event horizon can be crossed.Thank you for the response. I don't understand what a manifold is in your context. With internal combustion engines, manifolds...
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Foretranimal replied to the thread I I don't see how a black hole's event horizon can be crossed.I think I get Einstein's happiest thought: freefall in a gravitational well is indistinguishable from rest - not only are they...
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Foretranimal replied to the thread I I don't see how a black hole's event horizon can be crossed.Even a very, very, very, very, very long time is less than infinite time. I think even a very, very, very, very, very, very, very...
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Foretranimal replied to the thread I I don't see how a black hole's event horizon can be crossed.OK, but if we drop that stopwatch and don't jump in with it, doesn't that stopwatch experience a different now from the dropper's now...
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Foretranimal replied to the thread I I don't see how a black hole's event horizon can be crossed.This one is difficult to get: "But it turns out that there is an additional wrinkle here: there is more than one possible “infinity” in...
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Foretranimal replied to the thread I I don't see how a black hole's event horizon can be crossed.Thanks! This is going to take some time, and likely re-reads, but it is spot on the question.
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Foretranimal posted the thread I I don't see how a black hole's event horizon can be crossed in Special and General Relativity.OK, so this has bugged me for a while about the equivalence principle and the black hole information paradox. If black holes...
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Foretranimal replied to the thread Computer nerd who likes to read and chat about science.Thanks! I believe the top, cutting edge of physics is currently making stuff up that sounds the best. I did not realize there were...
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Foretranimal posted the thread Computer nerd who likes to read and chat about science in New Member Introductions.I really like reading about scientific progress, and looking for somewhere I might be able to ask questions interactively with similar...