"This includes a study that analyzed the exact same brain data from the original study and found that the sex of a given brain could be correctly identified with 69-per-cent to 77-per-cent accuracy." ... And so what if you are in the other 31 to 23 per cent? What conclusions should be drawn about you then? That is, should you be judged to be the same as "the majority" based on your gender, or race, sexual orientation, etc.? Using numbers to draw conclusions about whole populations is a disservice to everyone. How about just looking at the individual and going from there? Not all women are the same, not all men are the same, not all black people are the same, not all Caucasians are the same... that's provable...