heres a reasonable analogy thats not perfect but gives an idea (1/many)
Thank you the replies, but I still see no explanation *how* this info about its inside can go outside without going FTL.
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so we can infer the weight creating the black hole, by seeing how stuff (sand) moves near the hole. (6)
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this is near the hole but not in it, so its observable. (finished :))
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Thanks, but that does not explain the problem of how the sheet knows how to bend without getting information about the ball.
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My original assumption was that the mass of a black hole is inside the black hole; out of reach without FTL travel.
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like how the mass of the ball bending the sheet is distributed evenly inside the ball. This is not the case.
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The "sheet" also does not curve concave back "underneath" a black hole like the sheet does in your analogy.
End of conversation
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gravity is the cause for "no escape". It distorts space-time. It does not need to escape. The effects of it are measurable
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But as soon as you add mass to the hole, space-time must adjust. So how does space-time know it must? This info must travel; how?
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from a perspective outside the black hole nothing ever enters it. So you don't have that issue. It all stays on the outside
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Not true: LIGO detected merging black holes; these "entered" each other, space-time adjusted to the new mass distribution; how?
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My bad. But you can see the mass going in, and adjust. Later nothing comes out, so you don't update.
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I'm pretty sure space-time does not speculate about what is going to happen, but sticks to the information it has available.
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https://n.ethz.ch/~usoler/download/GR/Spacetime%20and%20Geometry.pdf … p. 208: "Thus a light ray that approaches r=2GM never seems to get there ..." (time dilation)
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