Teller (of "Penn & ___") discusses the working premise of their show, Penn & Teller: Fool Us. I like the show for a number of reasons, one being that an important thing people have to keep in mind when they see magic is that it's always a trick. No one can read minds. No one can levitate. A good magician reminds you that just because you can't figure out how it's done, the explanation is not unearthly powers.