Maybe this has been discussed here before, but if you are not familiar, this is pretty cool. I've read about it before but recently was exposed to this 5 part video. Each part is about 9 min long. In a nutshell: 11 dimensions, unlimited parallel universes. Based on this physicists and cosmologists are working on a unified theory of the space around us, what we usually call the universe may in fact be the metaverse. So how many universes can you fit on the head of a pin? Very interesting ramifications for theists, spiritualists, and atheists. Yes? http://www.youtube.com/watch?v=Z7SDrj4Tjvk For anyone who gets into this String Theory Simplified maybe of interest.