Tonight (02/19) on PBS at 9 p.m. MST a real mind-bending episode on a theory about the universe -

Byrne: Yes, that's the Many Worlds theory. (Everett, by the way, didn't call it the Many Worlds theory. He called it the "'Relative State' Formulation of Quantum Mechanics.")

But the upshot of the Many Worlds theory is that this universal wave function describes a series of branching universes that make up what [physicist] David Deutsch calls the "multiverse," and that in these branching universes, there are beyond trillions of copies of you, of me, of Everett. There are branches in which Everett is still alive. There are branches in which we did things that we don't want to talk about, that we may have thought about but we never did. Well, guess what? I'm sorry to tell you, in Everett's theory, you actually did it, because everything that is physically possible happens in some branch of the multiverse.

http://www.pbs.org/wgbh/nova/manyworlds/byrne.html

Enjoy, Vince