 While Overall offers a far more nuanced analysis, claims Heyes, she still treats race and sex in a way that is abstracted from the historical conditions and assumes that such history is irrelevant to ethical assessment (2006, 269–70). In particular, Heyes argues that in drawing analogies between race and sex there is a danger in not paying sufficient attention to the contrasting histories of race and sex. For example, since sex has been viewed as a core ontological fact in a binary scheme, the conditions are in place for the possibility of sex-change as well as medicalized transsexual discourse which reinscribes this basic, ontological binary (2003, 1102; 2006, 2006, 277). By contrast, while race has also been viewed as a natural category, there is another racial discourse which understands it as a superficial feature under which human beings are all the same. This, along with the lack of the same strict binary, does not provide the same conditions which would make “transracialism” a similar possibility (2003, 1103).