World Upon World, Universe Upon Universe
b'Is our Universe all that there is? Is it possible that there are actually more universes than there are atoms in our observable Universe? Such an idea - the concept of the multiverse, is hard, if not impossible, to prove, but is supported by scientific theories like inflation and mathematical theories like string theory. Today we are joined with Dr. Jerry Cleaver, who talks about what the multiverse is and the philosophical puzzles that it produces.'