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Anonymous at Sun, 9 Feb 2025 07:10:52 UTC No. 16580045
is there shit that could probe the interior of a black hole, or does the geometry mean that you can't get anything back out?
like, i get that photons can't make it past the horizon, but would all phenomena that we know of not be able to escape? for example, neutrinos don't react much with matter, is there some sort of "thing" that would only be slightly affected by a black hole?
Anonymous at Sun, 9 Feb 2025 08:58:24 UTC No. 16580097
>>16580045
Something that is either not affected by gravity or moved faster than light could get out
Anonymous at Sun, 9 Feb 2025 09:01:01 UTC No. 16580100
I still don't understand how information isn't lost since it shredded by random. random is a way to bypass speed of light for info. problem is that it's statistically useless.
Anonymous at Sun, 9 Feb 2025 09:10:20 UTC No. 16580104
>>16580100
>I still don't understand how information isn't lost since it shredded by random.
ah no even if it's random the info should be preserved on the "surface" of the black hole and it should still be recoverable from escaping particles.
Anonymous at Sun, 9 Feb 2025 09:16:56 UTC No. 16580107
Gravitational waves
Anonymous at Sun, 9 Feb 2025 10:17:43 UTC No. 16580148
>>16580045
some popular sci, could be on the broish side, apologies if so
Anything that cannot avoid reaching tomorrow can't avoid going further into the black hole. And similarly the event horizon will always be in your past after crossing (although an "apparent horizon" still appears and you never see the centre).
At the event horizon the metric which calculates distances in spacetime) switches signs in the time and space components. So now going to shorter R means moving forward in time.
This is why "they" say avoiding the singularity is like trying to avoid next Friday and is a "moment in time".
For a spinning or charged black hole, the exact solutions show two horizons, and possible way to get to "another place" after going through the ring singularity and emerging from a white hole.
Near the inner horizon there can also be found closed time-like curves, i.e. time travel routes through the space. but might not help much.
.Anyway tho, these solutions are thought to be inaccurate inside the outer/event horizon and more importantly unstable.