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somat 3 days ago

Being charged and or rotating changes the dynamics of where the event horizon is in interesting ways, If I understand it correctly it forms a sort of shell where you have two event horizons one inside the other. and the theory being that if enough energy(charge and/or rotational) is present the two event horizons will meet leaving your naked singularity. Nice and neat, the main problem being the absurd amount of energy required.

My personal area of fascination is the time dilation around a black hole. One of those things I assume them who actually study the things(astrophysicists) take into consideration but I almost never see in the popular press. If I understand it correctly, as you fly into a black hole, nice and neat right, will see the rest of the universe quickly age and die before you reach the event horizon. If Hawking radiation is a thing you may see the black hole evaporate in front of you before you can reach it.

marcus_holmes 2 days ago | parent [-]

That's fascinating. So how does a black hole "feed" and grow if matter never enters it because of the time dilation? Or is it that weird perspective thing, where from an outsider's perspective the matter enters the black hole and the hole grows, but from the matter's perspective time dilates and it never gets to the hole?