According to psychologist Martin Seligman, depressed people tend to be more realistic than optimistic ones. And the optimists, even when their good cheer is unwarranted, accomplish more. They do better in school, for example. As Seligman explained to Fortune magazine, the people most likely to succeed are those who combine "reasonable talent with the ability to keep going in the face of defeat."... People in Great Groups are simultaneously analytical and confident. As Alan Kay once observed, "The way to do good science is to be incredibly critical without being depressed." Great Groups don't lose hope in the face of complexity. The difficulty of the task adds to their joy.
