I don't know, and certainly the brain seems to be very amendable (ie taxi drivers have enlarged regions for dealing with maps). However, I'd like to point out

I don't know, and certainly the brain seems to be very amendable (ie taxi drivers have enlarged regions for dealing with maps). However, I'd like to point out that there apparently is a genetic difference in male and female bodies. While women can become very strong and develop "body builder" physiques, it's certainly not the norm (also not sure how much hormone pills play a role in the women who turn out like that). Of course from that it doesn't follow that differences in the brain are genetic, but imo it makes it seem possible. Clearly the physique is optimized for different ways of living, so why not the brain.