In hindsight it may even seem inevitable that a socialist society will starve when it runs out of capitalists.

The human species really could have faced global thermonuclear war. During seventy years of Cold War we grew used to it.

There 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.

We're looking as far ahead as we can, and we don't get penalized for mistakes.

Never fire a laser at a mirror.

It is a cardinal sin to bore the reader.

I never got good at predicting what millions of people will suddenly decide is rational.