Nancy Tuana holds that the nature/nurture dichotomy does not accurately represent the world and hence that a whole series of assumptions about human nature is mistaken. She rejects both biological determinism and alternative interactionist views. I argue that although her arguments and political concerns do rule out any kind of simple biological determinism, they do not show that the alternative interactionist view is untenable: in fact, she uses the distinction in her attempt to demolish it. I argue that the assumption that “nature” implies fixity is the source of difficulties here, not the dichotomy itself.