User blog comment:Wijata Mateusz/Imagine a world without the Americas/@comment-257949-20120724091103/@comment-257949-20120724194829

I knew I forgot to mention the Gulf Stream! Oh well. And yeah, for this, I'd assume an ASB dips the entirety of the Americas by five miles or so until they're all pleasantly underwater, and fill up the gap to sea level so the oceans remain consistent, at some stage... whenever. At that point the same ASB directs human evolution and the dawn of civilisation along roughly the same course, and then releases when the effects of no Americas start to be felt. Or something.