Well, it really depends on what you consider to be "the end of the world". Global human extinction? Whoa-oh, we're halfway there by virtue of wrecking the ecosystem and constant bickering (and by bickering I mean war). The complete destruction of the earth? That'd require, like, a meteor or an ancient god or something.
On a scale of one to superwhoavengepotterhobbitlock, how annoying is the Mass Effect fandom?