I was watching this really cool documentary on string theory. I didn't understand string theory when they taught it to us in OAC, but I understood what was going on in this doc and I haven't had any further physics training since (and that was five years ago) so they could explain things well. It turns out that I can believe in photons under string theory (I can't believe in them under quantum or general relativity), but I'm not sure if I can actually believe in string theory as it stands now. It's a lot more plausible to me with 11 dimensions than with 10 though. Ten is far too neat for a theory of everything.