What is going to happen in 2012?
skeptics.stackexchange.com
skeptics.stackexchange.com
This context is known. But the content is unknown. We don't know what will happen, how it will happen, or how long it will take. Peace on Earth? Apocalypse? Maybe.
But whatever it is, we'll look back and say, "The turning point was somewhere near the year 2012."
ha ha
More seriously I can't believe anyone thinks this has some currency and its particularly depressing to see it on HN