To ascribe individuality to personhood is to identify a pattern in the cosmos that captures a system of systems and conceptualise it as such: the human presence is itself divisible into systems of systems, with the peculiar supersystem of human qua human functioning as the emergent form of being conceived as a person in its own right. In the stratum of emergence that involves human affairs, individuality does make sense as an expedient mental shortcut: it is intimately linked to the unfolding—the making and remaking—of one’s ego. Methodological individualism that insists on there being no strata of emergence, even of the human sort as intersubjectivity, mistakes partiality for individuality, the in vivo with the in vitro.