The human species really could have faced global thermonuclear war. During seventy years of Cold War we grew used to it.
Larry NivenThere were timelines branching and branching, a mega-universe of universes, millions more every minute. Billions? Trillions? The universe split every time someone made a decision. Split, so that every decision ever made could go both ways. Every choice made by every man, woman, and child was reversed in the universe next door.
Larry NivenI've got five or six unpublished stories kicking around looking for somebody to buy them.
Larry Niven