> 1) The way we draw categories in biology is a social decision we make for social and cultural reasons, it isn’t a feature of the biology itself. A different sort of society might categorize infertile humans as a separate gender, for example, and that'd be as justified by the biology as our system. Or have 'prepubescent' be a gender, or 'having living offspring' be a gender—there are a million things that these categories could just as reasonably, from the biology, have been drawn around.
-I've addressed this class of argument at length (about 7500 words) in a previous post, ["The Categories Were Made for Man to Make Predictions"](http://unremediatedgender.space/2018/Feb/the-categories-were-made-for-man-to-make-predictions/), but to summarize _briefly_, while I _agree_ that categories can be defined in many ways to suit different cultural priorities, it's also the case that not all possible categories are equally useful, because the cognitive function of categories is to group similar things together so that we can make similar predictions about them, and not every possible grouping of entities yields a "tight" distribution of predictions that can be usefully abstracted over.
+I've addressed this class of argument at length (about 6500 words) in a previous post, ["The Categories Were Made for Man to Make Predictions"](http://unremediatedgender.space/2018/Feb/the-categories-were-made-for-man-to-make-predictions/), but to summarize _briefly_, while I _agree_ that categories can be defined in many ways to suit different cultural priorities, it's also the case that not all possible categories are equally useful, because the cognitive function of categories is to group similar things together so that we can make similar predictions about them, and not every possible grouping of entities yields a "tight" distribution of predictions that can be usefully abstracted over.
A free-thinking biologist certainly _could_ choose to reject the orthodoxy of grouping living things by ancestry and reproductive isolation and instead choose to study living things that are yellow, but their treatises would probably be difficult to follow, because "living things that are yellow" is intrinsically a much less cohesive subject matter than, say, "birds": experience with black crows is probably going to be _more_ useful when studying yellow canaries than experience with yellow daffodils—even if, _in all philosophical strictness_, there are a million things that these categories could have been drawn around, and who can say but that some hypothetical other culture might have chosen color rather than ancestry as the true determinant of "species"?