They say baseball is popular because everyone thinks they can play it. Similar reasoning may explain the popularity of the Olsen twins: Teenage girls love them because they believe they could be them. What, after all, do Mary-Kate and Ashley do in New York Minute that could not be done by any reasonably presentable female adolescent? Their careers are founded not on what they do, but on the vicarious identification of their fans, who enjoy seeing two girls making millions for doing what just about anybody could do.