The only reason I posted this link is because the accompanying picture is too cool and the whole concept is mind-blowing. And I know that’s two reasons, but… physics.
This illustration depicts a main membrane out of which individual universes arise.
Big Bang Discovery Opens Doors to…

http://preppersuniverse.com/that-means-one-tiny-atom-in-my-fingernail-could-be-like-could-be-one-little-tiny-universe/