A Warhol Factory kid turned freelance philosopher of science turned literary agent to Dawkins and Dennett and Pinker (and many others), in the 1980s he formed a casual salon of like-minded scientists and futurists that came to be known as the Reality Club, a knock against the poststructuralism then dominant in the academy. In the 1990s, he rebranded it as the Edge Foundation, an organization whose central event was an annual online symposium devoted to a single, broad question. In 2000, it was “What is today’s most important underreported story?” In 2006, “What is your dangerous idea?” Many in Brockman’s Edge community are, or were, inarguably significant figures in the American intellectual Establishment: Freeman Dyson, Jared Diamond, Craig Venter, John Horgan, Paul Bloom (to name a random but representative sample). They are also among the gods and heroes of the Trump-era internet community of “freethinkers.”