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Cake day: June 23rd, 2023

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  • A singularity is the single point mass at the center of an ideal (Schwarzschild) black hole. But mathematically, that can only happen if the mass that forms the black hole isn’t rotating. In reality, all the mass in the universe is moving around, because mass is not distributed uniformly, so gravity is pulling stuff around in a big mess. So when a black hole forms, it’s definitely a rotating (Kerr) black hole.

    A rotating mass has different gravity than a non-rotating mass. Not by much, but when you’ve got the enormous mass of a black hole, it becomes significant. This causes objects “falling into” a black hole to “miss” the point at the center, and form more of a cloud during spaghettification.

    The article is fairly accessible if you sit down and read it.

    Honestly, inside the event horizon, everything stops making sense compared to our day-to-day experiences. The immense gravitational forces distort space and time. It doesn’t really make sense to think about objects remaining intact as recognizable objects once they cross the event horizon.