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Given that time slows to a stand-still at the event horizon of a Black Hole, how long would it take a black hole to form, from the perspective of an outside observer?
It would seem, as a massive star collapses into a Black Hole, time on the surface of the star would slow as the gravity on the surface reaches the level of a black hole. Within the collapsing star, gravity is less and time continues closer to normal speed. Looking at it from the outside, far away, the black hole never quite forms. As it would take an infinite amount of time.
Any thoughts on this?