In this BBC video the Professor Jim Al-Khalili explores how studying the atom forced us to rethink the nature of reality itself. He discovers that there might be parallel universes in which different versions of us exist, finds out that empty space isn’t empty at all, and investigates the differences in our perception of the world in the universe and the reality

If my embedded video isnt showing… here’s the link:

http://video.google.com/googleplayer.swf?docid=-1406370011028154810

I find this very interesting indeed!

Edit: A fellow blogger has written an interesting article about this from a buddhist standpoint. Recommended reading http://soraj.wordpress.com/2008/05/09/matter-antimatter-universe-multiverses/