Ever wonder why people’s perception of the incidence of crime, terrorism, kidnapping and other violent acts is often much higher than the reality? Why the U.S. is becoming a low-trust society? Why Americans are collectively in a funk? A big part of the answer, according to experts in social science, psychology and computer science, is that the biases that were once useful to our primitive forebears have become—like the craving for sweet foods—detriments in our modern world. Instincts that may once have saved us from real...

Source: Wall Street Journal August 31, 2018 10:52 UTC