nope, the differences in brain development associated with gender are present even when it's misaligned with assigned sex and with genetic profile. believing that one can guess someone else's gender by just looking at the person is about as silly as believing that one can guess someone's sexual orientation by just looking at the person. or guessing the person's underwear color, for that matter. some of these are somewhat correlated, but nature is more diverse than our narrow minds can guess. we need better measurement instruments and willingness to use them to be able to perceive more detailed realities.

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