/u/-Thourne-'s posts
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How long would it take for concrete and metal structures (for example, modern houses and skyscrapers) to decay/ get covered up enough that they aren't recognizable as their original form?
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I've often heard the singularity of a black hole described as a point, meaning one dimensional, and having infinite density. Does this mean gravity can "crush" dimensions? How can all that matter fit into something with no area or volume?
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