Information follows a Pareto distribution: 90 percent of the information comes from 10 percent of the sources. Prior to the internet and mobile phones, that meant a few TV networks and local radio stations and newspapers. It used to cost tens of dollars for a long distance phone call; now it’s basically free. Now the outliers can broadcast their messages. In some cases, they’re valuable. But there are a lot of wing nuts out there. There have always been conspiracy theories, for instance, but now they have a global community and can talk to each other.