Intelligence is usually seen as the ability to think and learn, but in a rapidly changing world, there's another set of cognitive skills that might matter more, the ability to rethink and unlearn. In recent months, the pandemic has forced us all to re-evaluate our assumptions about health and safety and multiple acts of police brutality have challenged most of us to reconsider our responsibility for fighting racism. Yet in our daily lives, too many of us still favor the comfort of conviction over the discomfort of doubt. With bold ideas and rigorous evidence, he investigates how we can embrace the joy of being wrong, harness the surprising advantages of impostor syndrome, bring nuance into charged conversations about abortion and climate change, and build schools, workplaces, and communities of lifelong learners.