Yes, No, Maybe So

Constellations, a play currently on stage in London, explores the ramifications of life in a multiverse. Here, the human angle may be even more fascinating than the scientific one: As the reviewer says, "If you truly accept that you inhabit a multiverse in which 'everything that can happen, does happen,' then what real significance do your choices have?": http://www.newscientist.com/blogs/culturelab/2012/01/dating-in-the-multiverse.html