Jo-Jo Koo discusses the early Heidegger's views of sociality and situates them in the context of the"non-summative constructionism" that characterizes much contemporary philosophy of sociality. This is the view that collective intentionality is not reducible to the intentions of the individuals involved, and yet emerges out of some kind of interlocking among them. However, Koo is very much aware of important differences between Heidegger and contemporary theorists. He nicely summarizes Heidegger's distinctive contribution in the following terms: "Whereas analytic social ontologists are primarily concerned with the process or mechanism by means of which interacting individuals can construct social or collective entities (collective beliefs, intentions, actions, agents, institutions, etc.), early Heidegger's crucial move emphasizes the conditions under which all entities, including social and collective ones, can make sense at all". Koo's analysis emphasizes the role played by Heidegger's famous notion of the anyone (das Man), as the condition that enables individuals to have a referential nexus of practical possibilities that are governed by a set of publicly shared norms.