 This makes sense given that the current notion of decisional capacity in health care arose with, and remains closely tied to, the doctrine of informed consent. Informed consent is both a moral concept and a legal practice that arose in the second half of the twentieth century in response to the widespread paternalism of physicians and clinical researchers. It was only once patients and research subjects began to be involved in making their own decisions that it became clear to many that some sort of fair, formal method was needed for distinguishing between those who can make their own decisions (and so ought to be allowed to) and those who can’t make their own decisions (and so should not be expected to) (Kim 2010: 11–14).