The tribalization now can cut through the population in other ways that have not been traditional. That’s why you have the rise of flat earthers.

Neil deGrasse Tyson explained how online communities can promote qualities of tribalism. The Internet allows these small groups to foster ideas that traditionally may have been marked as absurd or crazy: “If you have some idea that’s a little bit crazy but you don’t think it’s crazy, you type it in and up comes everybody else who shares that exact idea.” (The Hill — November 6, 2019)