That depends. Just how much mad science are you willing to engage in?

All of it. All of the mad science.

Well then, I can happily inform you that depending on just how physics works out, we might just get a solution to that whole "heat death of the universe" problem. Too early to tell, precisely, but I've heard some neat things about new child-universes forming inside black holes such that they torque space itself and generate non-conserved new mass-energy.

Citation, please?

Seen on /r/science a while ago, let me go grab the paper. Aaaand it's torsion, my mistake. http://arxiv.org/abs/1007.0587