The Psychology of Stupidity is a collection of essays and interviews with leading psychologists, neuroscientists, philosophers, and public intellectuals. It explores why people—including intelligent ones—often behave irrationally or foolishly, and how human brains are wired to fall into traps like overconfidence, bias, and misinformation.
The book doesn’t just define stupidity; it investigates:
Why smart people believe dumb things
How social media and groupthink amplify ignorance
Why it’s hard to correct misinformation
How pride, emotion, and ego distort our thinking
 
Contributors like Daniel Kahneman, Dan Ariely, and Antonio Damasio explain stupidity through the lens of cognitive science, behavioral economics, and evolutionary psychology. At times humorous, at times sobering, the book also examines how politics, education, and culture play into our collective blind spots.