"This theory suggests there are many – perhaps infinitely many – universes, some more or less like our own, some very different. This is not an idea confined to science fiction; it is respectable scientific speculation. Such universes are thought to exist in their own sets of space and time dimensions, and include worlds where key turning points in history, such as the Battle of Hastings, turned out differently from the way things happened in our world. The physicist Hugh Everett proved half a century ago that this 'many worlds' idea is completely compatible with everything we know about the way the world works, and is a natural feature of quantum physics."
I'm booking passage to the universe where Obama lost the election (because the electorate wasn't getting its news from late night comedy shows).