Why am I me?. Why not somebody else?. And if I were somebody else, how could I tell?. It's amazing how people can talk and write about a collective counsciousness when there's so little know about a single soul.
I, for one, have always wonder what would it feel to be someone else, only if it were for a couple of seconds. You may think it would be just the same, but I don't think so. How would you see the world with another eyes?. Science can help a lot, but it can't say what you would see through another eyes, because noone's ever experienced that (and that's about science is all about).