Well, think about it. Think over every single other doomsday prediction you have ever heard, and every one you haven't heard of. Statistically, how likely is this one to actually happen? So the Mayan calendar is ending, what will happen? The same thing that happens when our calendar ends, which is absolutely nothing. It's just a measurement of time, nothing more. Anyone can come up with anything, I can say the world is going to end tomorrow because it'll be sucked up by a random passing black hole. Does that scare you? It shouldn't, because I just made that up. There's never ever any reason to believe or be scared of things just because people say them. Even if the world were to end, unless there was something you could do about it, why would you waste your time being afraid? You have, what, a year and a half left to live? Then get the fuck to it, go out and live as much as you possibly can before the world ends. Do you really want the rest of your short life to be nothing but sitting around moping? And when you wake up the morning after, you'll be happy you've spent that time doing something useful.