Nate Silver looks at how predictions are made, and why experts and laypeople both mistake more confident predictions for more accurate ones. He explains that overconfidence is often the reason for failure, and if our appreciation of uncertainty improves, our predictions can too. In The Signal and the Noise: Why So Many Predictions Fail—but Some Don’t Silver visits the most successful forecasters in a range of areas, from hurricanes to baseball, from the poker table to the stock market, from Capitol Hill to the NBA.