What do you think the ultimate fate of humanity will be?

Do you think the world will end, as in the Biblical apocalypse outlined in the book of Revelations? Or do you think we will just keep multiplying, until there simply aren't enuogh resources for all of us? And if that happens, what will our fate be? Might it be like "Mad Max" where might makes right, and we all fight it out to see who survives? I ask because it seems ever clearer that we will not be able to colonize space - as Karl Sagan, Stephen Hawking, and other scientists suggested - soon enough to avoid the dire consequences of overpopulation, exacerbated by corporate greed. So what do you think is going to happen to us in the long run?