Ethical Naturalism and the Justification of Claims about Human Form

Recent defenders of Philippa Foot, such as Michael Thompson and John Hacker-Wright, have argued that it is a mistake to think that Ft aims to justify a substantive conception of human soundness and defect. instead, she relies on the acceptance of certain groundless moral norms to underwrite her views about what is characteristically human. I maintain that this is a weakness and that the Footian-style proponent of natural normativity needs to provide a story about how we might achieve justified self-confidence regarding moral norms. In this paper, I offer a coherentist model for doing so, thereby addressing the justification gap.