After reading and teaching Bible scripture, and studying numerous research books, including "The Comets of God" by Dr. Jeffrey Goodman, it is now crystal clear to me that the "End of Days" - final judgement - Tribulation - consists of a 3.5 year period of high velocity comet impacts that destroy human civilization due to its wickedness and evil. The 7 Trumpets / 7 Bowls (Vials) describe 7 increasingly catastrophic meteor impacts that block out the sun, move mountains and islands, and obliterate human civilization as we know it. The end of the world doesn't come from nuclear weapons. It comes from comets that are already on trajectory to collide with Earth. There will be no "X" when this happens, btw. You won't be able to tweet about it. You'll probably be dead. And there are many signs that this day is fast approaching. Exploding pagers will be the least of your problems. The entire surface of the planet will be exploding. Few will survive. Some governments may already be aware of these approaching comets but they aren't telling the public. They are, however, building deep underground bunkers for themselves (and buying gold). I guess they plan to survive underground for a few years while mass famine, disease and wars run their course on the surface.