The question of choice is orthogonal to the question of fluidity. I don't think you choose who you become attracted to, but obviously it may change over your li

The question of choice is orthogonal to the question of fluidity. I don't think you choose who you become attracted to, but obviously it may change over your lifetime. I call it 19th century theory because this is when the theory originated. Before this "sexual orientation" was not really a concept and words like "homosexual" and "heterosexual" did not exist. Sexuality was something you did, not some inherent "orientation".