we’re living in an age when information technologies make it easy for relatively small numbers of people bound by a common enmity to find each other, no matter where on earth they are, and then coordinate to deploy violence. Hatred, even when diffuse and far-flung, has increasingly lethal potential. What causes all the hatred? At some level, it’s always the same thing: human beings operating under the influence of human brains whose design presupposed their specialness.