There is far greater psychological variation within each sex than there is between the sexes, is there not? Even if the space of all possible minds from XY-grown human brains and the space of all possible minds from XX-grown human brains do not perfectly overlap, I know of no evidence that suggests that the disparity is actually significant enough to be meaningful.
Is it even possible to reliably tell the difference between an XX brain and an XY brain just by looking at the structure of neurons? Has anything ever actually been found that was exclusive to one or the other?
There is far greater psychological variation within each sex than there is between the sexes, is there not?
It depends on what you're measuring. Let me illustrate with a toy example. Consider some quantitative trait such that the trait value is normally distributed within each sex, and say that both distributions have the same standard deviation (call it s) but different means (call them x1 and x2). (Imagine two bell curves plotted on the same chart, partially overlapping.) We can measure the difference between the means in terms of s; this statistic is ...
Upon reading Eliezer's possible gender dystopias ([catgirls](http://lesswrong.com/lw/xt/interpersonal_entanglement/), and [verthandi](http://lesswrong.com/lw/xu/failed_utopia_42/) and the other LW comments and posts on the subject of future gender relations, I came to a rather different conclusion than the ones I've seen espoused here. After searching around the internet a bit, I discovered that my ideas tend to fall under the general category of "postgenderism", and I am wondering what my fellow LessWrongians think of it.
This can generally be broken down to the following claims:
EDIT- Due to some really insightful comments;
I replaced men being prone to aggression as a negative, with men being prone to suicide.
I made the verbiage a little more explicit that no one would be *forced* to change, but would seek out the changes that transhumanism would have available.