Conference held on Thursday, 13 June 2019 to Friday, 14 June 2019 in St Cross College, Oxford. It is often assumed that human moral status is an all-or-nothing affair. Philosophical debate about the moral status of foetuses and the severely cognitively impaired is typically between those who argue that full moral status is possessed and those who argue that moral status is altogether lacking. The difficulty of knowing how to regard the moral status of a range of beings that we have recently created, or may soon be able to create, and which seem to blur the boundary between human and...