Once you've learned about autogynephilic and homosexual transsexuals and seen several of each, distinguishing them is easy. - J. Michael Bailey

The contention that homosexual orientation (as distinct from homosexual behavior) is a recent and local phenomenon is not supported by the evidence. Men who look awfully similar to the men I’ve been talking about in previous chapters seem to have existed through the ages and in vastly different cultures. Social constructionists’ refusal or inability to see this suggests that they are trying to keep their eyes closed.

The fact is that we don't know enough about hormonal effects on the human brain to have a very specific theory of how Danny's brain could have developed in a feminine direction while his body developed masculine. If Danny's body also showed signs of feminine development, this would support nature theory, but the lack of anatomical femininity does not disprove it. There has been essentially no research on boys like Danny that is directly biological. Short of dissecting the brain of a feminine boy and comparing it with normal boys' and girls' brains, it is unclear what we would even look for. However, the best conceivable direct test of nurture theory has been tried, and it failed. Amanda became Jason again.

When they leave prison, men who had been heterosexual before entering usually return to a strictly heterosexual lifestyle. Their prison encounters did not indicate that their sexual preference had changed. The men were simply doing the best they could, given constraints. It would be important to know what these men were thinking when they were having their penises sucked by other men, for example. Were they thinking of the men sucking their penises, or were they imagining their girlfriends at home? The former possibility would indicate more flexibility of true sexual preference than the latter.