An excerpt from a very timely and important Robert Wright reality check
What’s not transient, unfortunately, is the technological trend that drives much of this. It isn’t just that people can now build a cocoon of cable channels and Web sites that insulates them from inconvenient facts. It’s also that this cocoon insulates them from other Americans — including the groups of Americans who, inside the cocoon, are being depicted as evil aliens. It’s easy to buy into the demonization of people you never communicate with, and whose views you never see depicted by anyone other than their adversaries.