Schools that administer this instruction never acknowledge that, as a scientific matter, it’s gibberish. It is biologically nonsensical to suggest that a girl’s brain—every cell of it stamped with XX chromosomes—might inhabit a boy’s body. No mention is made of the fact that there are no diagnostic or empirical criteria for deciding that a biological girl is in fact “really a boy.” Nonetheless, this drivel is taught with the same sobriety and apparent thoroughness as facts about human reproduction and sexually transmitted disease.
