Seriously though, are some people's lives so boring and uninteresting that they have to believe that the world is going to end to feel as though their life has meaning? They honestly believe the world is going to end December 21, 2012. And what's their proof? A bunch of dumb people sitting in caves who thought the world wasn't much older than themselves to begin with and that the world wouldn't last much longer after they died. I'm telling you, some of these things are just fucking nuts.
One, for instance, is the Mayans. In case you don't know, the Mayans have a really accurate calendar. Some calendars track the moon, some track the stars, and others, including our own, track our rotation around the sun. The Mayans did all three at once. Our calendar loops every 12 months, but their calendar takes thousands of years to loop around. On the last day of their calendar, the moon, the earth, the sun, and the center of the galaxy are all aligned. The Mayans thought the world would end on this day, and that day happened to be December 21, 2012. Holy shit people, are you kidding me? What makes you think the Mayans knew anything about when the world would end? Where's their evidence, where's their proof? Weren't these the people who sacrificed other people to the gods to appease them? Weren't these the people who got their asses kicked by the Conquistadors? If they could predict when the world was going to end, why couldn't they predict when their own civilization was going to end? None of those 2012 conspirators mention that part of it, do they?
Some of these people say that an asteroid is going to colide with the Earth on December 21. According to NASA, no known asteroid or meteor is on a collision course with the Earth. But what if it's outside the range of our telescopes, you say? If that's the case, then it's either not going to hit us in 2012, or it's moving so fast it would burn up in our atmosphere anyway. For those who don't know physics: the faster something moves against the atmosphere, the more heat is generated.
Others say the poles are going to be reversed. It has happened before, granted. The magnetic poles of the Earth have switched, but it's always switched at random times, there is no patter to it. Besides, the process of reversal takes upwards of 5,000 years. Many of those 2012-ers will tell you it happens instantly. Even dumber yet, they say that there's a period during the reversal process when there is no magnetic field, and deadly rays from the sun will vaporize everything. Get a grip and read a fucking science textbook, people. Even during the reversal of the poles there is still a magnetic field, it's just more complicated. Life on earth would be unaffected, and in the days of GPS I doubt anyone uses compasses anymore anyway.
This whole thing is just beyond retarded. The more questions you ask them and the more answers they give you, the more you begin to realize that they're making it up as they go along, that they don't know any better than you do when the world is going to end, and that the whole thing is ridiculous.