The ethics of designing has often been organised according to moral imperatives, and social design not only aligns with such moralities, but perpetuates them without providing a clear critique of the systems to which they adhere. To rid itself of such reactive ideologies, and so to create other conditions for the possibility of its creativity, social design might occupy itself with a different account of ethics altogether. This paper will seek to elucidate such a different ethics along the lines Baruch (...) Spinoza proposed and Gilles Deleuze championed. That is, it will therefore call for an affective designing that operates by creating ethical ontologies. This article will bring an affective, ethical, ontological design to bear on a social entity that emerges from the relations affectivity requires insofar as it is one that is designed. (shrink)