OPEN UNIVERSITY SEPTEMBER 4, 2006
by Steven PinkerCass Sunstein calls attention to a feature of our psychology that is a major source of human folly. It's not a new discovery, though: There is a long line of research on this kind of phenomenon in social psychology, some going back the 1950s, under names like "risky shift," "group polarization," and "groupthink." See, for example, this
or the witty and still-relevant Social Psychology by my late mentor Roger Brown.