Who is Foucault? I do not know, and I do not really care. I confess that I have not read any of the biographies that have been written about him and I have no interest in his personal life. Indeed, if, as in some Shakespearean authorship mystery, I was told that he never really existed and that the books bearing his name were written by a number of different people it would not bother me. How then can I write about an author who may or may not have existed?