Freud's most radical legacy is the one that is the least actualized. After years of evolution on the topic, he came to the conclusion that any exclusive monosexual interest - regardless of whether it was hetero- or homosexual - was neurotic. In a sense Freud is saying what second-wave critic Kate Millet said a half-century late: Homosexuality was invented by a straight world dealing with its own bisexuality. By the end of his writings, in 1937, Freud was downright blythe about bisexuality: Every human being['s] . . . libido is distributed, either in a manifest or a latent fashion, over objects of both sexes.