Critical anthropological theory needs to be a theory of relationality. Only through a relational theory can we come to a perception of our fundamental commonality and conceptualise difference as being given significance by the unequal relations that we stand in towards each other. A relational theory needs concepts that reflect on the asymmetrical interdependence that shapes the dynamics of power relations, which give rise to institutions of significant difference'. I propose Luc Boltanski's notion of situation' as a concept that enables us to grasp the structured contingency that shapes our mutual interdependence. Situation, by making possible the micro-analysis of macro-relations, also provides the conceptual tools to think beyond that which is, towards that which is possible.