 One of the most important criticisms of Kant’s moral theory concerns human beings with severe cognitive disabilities who lack the moral capacities and dispositions that, according to Kant, are needed for people to have dignity, be ends in themselves, possess moral rights, legislate moral laws, be a member of the kingdom of ends, or otherwise have basic moral status (Kittay 2005, Vorhaus 2020, Barclay 2020; cf. the SEP entry    cognitive disability and moral status). When we reflect on what makes us morally special, according to Kant, we find that it is not our contingent properties, the biological species we belong to, or even our capacity to be conscious or to feel pain. Kant argues that rational nature, specifically the moral capacities and dispositions to legislate and follow moral principles, is what gives us inner worth and makes us deserving of respect (G 4:428–36, 446–7; Rel 6:26). Our basic moral status does not come in degrees. It is always equal to that of other people regardless of the level, if any, at which our moral capacities and dispositions are developed, realized, or exercised. Infants and young children, according to Kant, almost always have a moral nature even though their moral capacities and dispositions are undeveloped or underdeveloped (MM 6:280–1, 422; see also Schapiro 1999). Virtually all people with Down Syndrome and autism have basic moral status even if their moral capacities and dispositions are not as fully realized or exercised as they are in other people. Being asleep or in a coma does not preclude someone from having basic moral status even if their moral capacities and dispositions are temporarily or permanently dormant. Some human beings with significant cognitive disabilities, however, do not have even bare capacities or dispositions to recognize, accept, legislate, and follow moral norms. Kant seems to imply that anencephalic infants, those in persistent vegetative states, and other human beings with the most severe cognitive disabilities lack dignity and are not ends in themselves. They are apparently excluded from the moral community in ways that have unacceptable implications for how we should or should not regard and treat them.