Richard Dawkins’ best-known scientific achievement is popularizing the theory of gene-level selection in his book The Selfish Gene. Gene-level selection stands apart from both traditional individual-level selection and group-level selection as an explanation for human cooperation. Steven Pinker, similarly, wrote a long article on the “false allure” of group selection . . .
If you ask the man on the street what’s the biggest threat to the continued existence of human civilization, he’ll probably say global nuclear war. And yet, even as someone who worries a lot about threats to civilization, I don’t spend much time thinking about nuclear war.
Global nuclear war is . . .