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Astronomy

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    $\begingroup$ You say this as if its trivial. In reality it was quite a "tour de force" to prove black holes cannot be "overspun". $\endgroup$
    – TimRias
    Commented Feb 14 at 19:12
  • $\begingroup$ I'd be happy to see it if you can provide an answer with more basis in the physics of it -- the mathematics of black holes is a bit beyond me, personally. I assume as the rotational energy increases, eventually the black hole would start acting like it was gaining mass, making it harder and harder to accelerate, the same way particles act if you try to accelerate them close to c, but that's just me thinkin'. $\endgroup$
    – Darth Pseudonym
    Commented Feb 14 at 19:38
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    $\begingroup$ The EH (event horizon) is often described as a speed barrier, but that just shifts the question from "why can't you escape the EH?" to "why can't you go faster than light?". Due to spacetime curvature, any light or matter inside the EH must move towards the centre. The only paths crossing the EH go from outside to inside. So now the question becomes "why can't you go backwards in time?". ;) I have some more on this topic here: physics.stackexchange.com/a/696441/123208 $\endgroup$
    – PM 2Ring
    Commented Feb 16 at 2:37