“The Gay” (as TV newscaster Rachel Maddow ironically calls it) is newsworthy. Gay marriage. Don’t ask don’t tell. The Gay Agenda. We can’t escape it. It seems as if we know so much about the topic. But do we? Is it one thing? Many things? Is it the same in men as in women? What does it have to do with sex and gender? How does it develop? Who knows more about human desire—biologists or poets?