What is the I.D.W. and who is a member of it? It’s hard to explain, which is both its beauty and its danger.

Most simply, it is a collection of iconoclastic thinkers, academic renegades and media personalities who are having a rolling conversation — on podcasts, YouTube and Twitter, and in sold-out auditoriums — that sound unlike anything else happening, at least publicly, in the culture right now. Feeling largely locked out of legacy outlets, they are rapidly building their own mass media channels.

The closest thing to a phone book for the I.D.W. is a sleek website that lists the dramatis personae of the network, including Mr. Harris; Mr. Weinstein and his brother and sister-in-law, the evolutionary biologists Bret Weinstein and Heather Heying; Jordan Peterson, the psychologist and best-selling author; the conservative commentators Ben Shapiro and Douglas Murray; Maajid Nawaz, the former Islamist turned anti-extremist activist; and the feminists Ayaan Hirsi Ali and Christina Hoff Sommers. But in typical dark web fashion, no one knows who put the website up…

But they all share three distinct qualities. First, they are willing to disagree ferociously, but talk civilly, about nearly every meaningful subject: religion, abortion, immigration, the nature of consciousness. Second, in an age in which popular feelings about the way things ought to be often override facts about the way things actually are, each is determined to resist parroting what’s politically convenient. And third, some have paid for this commitment by being purged from institutions that have become increasingly hostile to unorthodox thought — and have found receptive audiences elsewhere.