There is growing sense that those interested in finding out what is true of the world are becoming a rarer and rarer breed. Everywhere we look, someone is trumpeting some blatant inanity. Vaccines cause autism. Adding flouride to water is a government conspiracy. Genetically modified organism are dangerous. Organic food is particularly nutritious. Christians are a persecuted minority. The 44th President was a foreign national and communist agent. The 9/11 Terror Attacks were an inside job. The world is only 6000 years old. Humans can’t influence the climate.
Nonsense is everywhere, but the impression that it is more prevalent than ever is mostly a matter of appearances. Humans are innately tuned to focus on the negative aspects of their environment. Good reasons for this abound, easily distilled in the recognition that it is far more consequential for us to spend our time thinking about the things that could be better than it is to spend it thinking about the things that are going just fine. On the landscapes of our ancestors, where decisions about what to pay attention to were a regular matter of life and death, it was vitally important to take note when things were about to turn sour – when herds of prey were about to migrate to a new territory, when seasonal changes were about to reduce the availability of edible fruits, when an unfriendly band of visitors turned up in your neighborhood.