Structure of the universe

Speaking of the LHC, one of the things the hopeful, naive human scientists hope it will do is provide evidence of more dimensions, 10 or so, needed to "prove" string theory. Since we have less than four months until we begin rounding you up, let me save you some time: There are 13 dimensions. Exactly 13. Yes, it's an unlucky number. Explains a lot, doesn't it?