I live in Kalamazoo, Michigan, where recently a guy working as an Uber driver shot eight people because he thought he was receiving coded instructions to do so from the dispatcher on his phone.
Crazy, right? And yet the reason this man seems so clearly, evidently nuts is that no one shared his belief. It was a private lunacy.
It would be comforting to think only isolated people are prone to the kinds of imaginings that lead to explosive violence. But in fact, there's no evidence to support this idea. Most isolated people don't bother other people. (And in fact, this Uber driver was not particularly isolated. He had a family.) What's actually true is that the greatest acts of violence are perpetrated not by lonely people, but by people whose lunacy is stoked by fellow believers -- by those who share and encourage a communal fantasy about a higher power who is directing them to shoot or blow something up, in the name of God or country or some other cause. Social groups can do a lot of damage. And the bigger the social group is, the less apparent it is, when that group becomes murderous, that its members are not only violent, but insane. Collectively insane. They have convinced themselves that ordinary people going about their business are actually not people, but targets.
Commonly these people are angry because something in their world is no longer the way it used to be. They want the world around them to match a world they think