apocalypse

According to millions of people, the world will end this Friday. Commentator Marcelo Gleiser debunks the doomsday prophecy and reflects on why so many otherwise reasonable people fall prey to such ancient fears.

Dec. 21 marks the end of the Mayan calendar — a time of celebration for the ancient people, scientists say, although some modern day folks worry it's a sign of the apocalypse. It may not be the end of the world as we know it, but beer masters inspired by the end of days feel fine.

So, when the zombie apocalypse comes, where will you flee? Should you hunker down on a remote island or blend into the urban landscape? Will the undead…