The World was Ending. Again.
Once upon a time the world was ending. Again. It seemed that the world was ending all the time lately, which was quite exhausting.
In fact, the world was just about fed up with ending.
It was a tricky thing, though, being fed up with ending. The problem was that it couldn't remember an alternative. It had gone on being, almost ending, century after century. As far as it could tell, that was simply what it was to be a world. Which was, of course, a rather depressing thought.
The world wasn't exactly sure how, but it certainly knew when it was supposed to be ending. People kept saying, 'The world is ending!' in one century or another (or sometimes several times in a single century) and that was how it knew.
But, of course, it didn't actually end.
It's only natural that the world was getting fed up. Promises never kept do make it rather difficult to move on.
So when the next ending presented itself, the world took proactive steps; which is to say: it ended.
The universe thought this a wise move.
After all, it was the world's only chance at beginning.