Universes may very well self replicate. It's has been theorized that our universe's Big Bang singularity is not unlike the singularity of a black hole. And the

Universes may very well self replicate. It's has been theorized that our universe's Big Bang singularity is not unlike the singularity of a black hole. And they may be two sides of the same coin. If a black hole creates a child universe and inherits physics from the parent that gives you self replication and possibly natural selection. In the set of universes any universe that can replicate and pass on it's physics "genes" would be found to have more survivors in existence of it's type. Lastly, if the physics required for black holes (and associated replication) are the same as those required for life then universes are naturally selected for life.