You might remember last November when — are you sitting down? — the U.S. Department of Health and Human Services was proposing to establish a legal definition of whether someone is male or female based on the genitals they were born with.

Who should be more upset by that move than scientists? Science journal Nature came out swinging, saying the idea of defining someone as male or female based on their genitalia had “no foundation in science” and would “undo decades of progress on understanding sex — a classification based on internal and external bodily characteristics — and gender, a social construct related to biological differences but also rooted in culture, societal norms and individual behaviour.”

Remember, these are scientists who know way more than we do.

Now Nature is at it again, and the always-controversial Jordan B. Peterson is calling them out:

This new piece, titled “Neurosexism: the myth that men and women have different brains,” was written to discredit the research that has been done on distinctions between men’s and women’s brains. Hey, if you can’t tell a man from a woman based on their genitalia, you certainly won’t find any differences in their brains.

Speaking of penises, this isn’t a science journal, but it’s a good snapshot of where we stand in 2019: