Well, I'm currently reading The Black Hole War by Leonard Susskind, and one thing to me seriously doesnt add up. It says that when someone falls into a black hole, and observer from the outside would not see them fall into the singularity, but they would seem to stretch out and move slower and slower until they stop entirely. However, if they did cross the event horizon, wouldn't their light not escape, therefore they would completely disappear? And if the light is just being stretched out, it seems that black holes would in fact be very luminous objects, since the light from everything that fell in would be stretched out as well. Maybe its just a mistake in taking the visualization to seriously. Could someone perhaps clear this up? Thank you in advance.