Have you ever made a big decision, certain it would bring you happiness, only to find yourself feeling the same as you did before? Or perhaps you've dreaded an upcoming event, convinced it would be a disaster, only to discover it wasn't so bad after all. In his groundbreaking book, Stumbling on Happiness, Harvard psychologist Daniel Gilbert reveals the shocking truth: our brains are terrible at predicting what will make us happy. He shares the surprising science of "affective forecasting" and the range of biases that lead us to constantly misjudge our future happiness. Gilbert’s central argument in Stumbling on…