Collective wisdom might best be found when small groups of people are given a chance to discuss and deliberate, say social scientists Dan Ariely, Gerry Garbulsky, Joaquin Navajas and Mariano Sigman. Could this suggest a better way to vote?

Hint: it has something to do with why we believe the earth is flat until we’re taught otherwise in school. Neuroscientist Mariano Sigman explains how the process of learning involves a certain amount of un-learning what we intuitively know.