I find this subject quite interesting. And while theres a lot of junk out there, thats total non-sense, I do think there are some facts and truths to it all.
The entire pole shift theory could be possible for example..
Aside from increasing amounts of Earthquakes, Solar flares etc. , there are supoposed to be 3 main events that signal everything is near.
And that is the 3 eclipses that are supposed to happen all in 2012.
If I recall correctly, a Lunar Eclipse, a Eclipse of Venus and the the mother of all Eclipses.. the Eclpise of the Galactic Center which is supposed to happen every 25,800 years.
I find this prediction interesting,simply because our modern technology can confirm these are indeed supposed to happen. makes you wonder how the Mayans knew. perhaps it is as they said. The world has been destroyed and rebuilt 4 times before. We are approaching the 5th. And thier calander is the countdown of this ancient knowledge.
No one knows exactly what happens when we align with the center, perhaps nothing at all.
But they do know theres a black hole there. Perhaps it wreaks havok with Earths magnetic fields and gravity?
At any count, If you are to believe the Mayan predictions, it doesn't actually mean the "End of the World"
It has happened before, according to them and many others, and things rebuilt.
In fact, the calendar doesnt just stop in Dec. 2012. Dec. 2012 is just the end of the Long Count, a 25800 year cycle, at which point we enter a New Age,
The Age of Aquarius, and the calender starts over with its 25,800 year countdown.
It seems every religion has stories of the world being destroyed and then moving into a New Age.
For example we are in the Age of Picies now, symbolized by the fish.
So, Im not sure everything will just come to an end.
But I do think it may stir up a lot of problems.