“The usual theory of eternal inflation predicts that globally, our universe is like an infinite fractal with a mosaic of different pocket universes, separated by an inflating ocean. The local laws of physics and chemistry can differ from one pocket universe to another, which together would form a multiverse. But I have never been a fan of the multiverse. If the scale of different universes in the multiverse is large or infinite, the theory can’t be tested.” - Stephen Hawking.