This post has skill issues. The cab driver study has no bearing on a sex difference study. The subject groups are intentionally too different. One cannot port a

This post has skill issues. The cab driver study has no bearing on a sex difference study. The subject groups are intentionally too different. One cannot port a conclusion from it to the other study. Only as a theme in a hypothesis. Ergo, you can not say that a study that showed a difference in gender brain matter "does not immediately prove" the conclusion due to the cab driver study. It may immediately prove, and it may not. But the reason that it would not is not the cab driver study. The reason would be other aspects of the gender study. Such aspects, like deficiencies in study design, should be in the discussion regardless of the cab driver study. But the real issue is that "immediately prove" is simply unscientific language that should be revised. You're also asking everyone to accept that cross-gender nurture, all other variables accounted for and including "gender role" volunteerism, is definitely the deciding factor. Sorry. And I say that as someone who could care less if my opposite gender has a brain that has 3x "better" architecture according to any study.