The ancient Mayan calendar is considered by experts to be really accurate. It ends, though, in 2012. A lot of "New Agers" I know think that is the date the world will end. But not in the big bang blow up kind of way. They think that the "end of the world" will actually be a shift in consciousness that comes about because of some major otherworldly event, like the appearance of aliens or other things I can't even imagine. I don't think they're totally off-base, though. After all, maybe all of those angels in the Bible were actually aliens being described in terms that made sense at the time. Anyone remember Ezekiel's Wheel?
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Excooobeeeee! Has anybody got any bottle of orange juice? --League of Gentlemen "Orange Juice Sketch"