Nibiru is hiding behind the moon waiting to jump out on the 21st . Or it is anti matter so we can't see it.
Seriously all these theories are of course preposterous, pole reversals indeed maybe zombie apocalypse people have watched too many movies. Now something that could happen again highly unlikely, but would be catastrophic is for the super volcano under Yellowstone to erupt, that would cause another ice age and probably kill thousands, this will happen someday, not in our lifetimes or even our great grandchildren lifetime, but it is real.
The 21st will come and go and all the doomsday proponents will go on with their lives.
Love is better than anger. Hope is better than fear. Optimism is better than despair. So let us be loving, hopeful, and optimistic. And we will change the world. - Jack Layton (1950-2011)
Blackberry PlayBook 64GB Nokia 1020, Microsoft Surface PRO 2