David Anderegg, author of Nerds: Who They Are and Why We Need More of Them, tells John J. Miller that the nerds in his study are the nerds of the stereotype: They are “people who are good at math and science; who are said to be sometimes a little awkward or socially unskilled; who are deeply absorbed in things that are sometimes boring to other people; who are technologically sophisticated.” Why do we need more of them? Anderegg has the answers.