Once upon a time, two identical twins were separated at birth; neither knew she had a twin. Years later, they chanced to be in the same place at the same time, and each was mistaken for the other, until they were finally brought together, all misunderstandings were explained, and everyone lived happily ever after. This is what I would call a myth: a story which people continue to believe is true in the face of sometimes massive evidence that it is not; a story that is told again and again because it poses a question that can never be answered. In this case: what is it that makes each human being unique?

LRB 19 March 1998 | PDF Download