The Mayan prediction of the end of the world was a guess, the Mayan's even stated it may not be accurate. I mean, come on, you're relying on a person to tell you when the world ends? Some people can't even take a shit without someone helping them.
I must say, I'm gonna have to agree with Zeke on that one. I'm told the poles or someshit are supposed to realign and it COULD be catastrophic. Just, it probably won't be.