I think time stops in a black hole because according to the string theory a particle that can roam without being bound by a demension is a loop. Scientist believe that a gravition is a loop witch is a force. Now, the 4rth demension is considered to be time. What happens if energy is applied to 4-Demensional figures? Doesn't time speed up? The center of a Black Holes's Gravity is 0. So no gravity = No time aceleration witch means nothing can happen. But then the middle of planet's gravity is also zero so I may be wrong about this whole thread but am I at least on the right track?