The document discusses the benefits of cognitive diversity in groups. It presents several key points: 1) Exposure to minority dissent increases individual courage to resist conformity and consider problems from multiple perspectives, leading to more correct solutions. 2) Debating different approaches and perspectives associated with cognitive diversity stimulates divergent thinking, which is closely linked to greater creative output. 3) When solving problems and making predictions, diversity can be just as important as ability according to mathematical models. Bringing a diversity of views increases the likelihood of finding the best solutions.