The work that is truly productive is the domain of a steadily smaller and more elite fraction of humanity.

Animals can adapt to problems and make inventions, but often no faster than natural selection can do its work - the world acts as its own simulator in the case of natural selection.

The work that is truly productive is the domain of a steadily smaller and more elite fraction of humanity.

I never guessed I could cry so hard my face hurt.

The voice was gentle, like a scalpel petting the short hairs of your throat.

The physical extinction of the human race is one possibility.

Well, what do you know," Pham said. "Butterflies in jackboots.