In a very simplified, very elementary description: Black holes (AFAIK) suck in huge quantities of light and matter and compresses matter into a singularity. The big bang (AFAIK) was the start of our universe through which huge quantities of energy and matter exploded from a singularity. I can't help but make the connection. It seems like black holes are the "opposite" of the big bang, with my very layman understanding of them. People often talk about what happens "on the other side" of the black hole, what if the other side of a black hole is another big bang?