The God believer asks God whether he should believe or not. God replies that it’s a matter of free will. I created you to be free to deny me. The Darwinist considers whether she has evolved to accept Darwin. The geneticist probably doesn’t worry too much about genes playing a part in the science of genes. It’s science, after all, and that’s clearly objective. The Marxist knows she is the product of the capitalist system and she needs help from her psychoanalyst. But her psychoanalyst is worrying that desire has produced psychoanalytic theory, then puts this to one side as he remembers his Marxist patient is due, and he gets a fat fee. The writer, however, cannot be sure of anything. And in not being sure is completely fucked up.