 In computational simulations, game-theoretic cooperation has been appealed to as a model for aspects of both ethics in the sense of Sidgwick and social-political philosophy on the model of Hobbes. That model is tied to game-theoretic assumptions in general, however, and often to the structure of the Prisoner’s Dilemma in particular (though Skyrms 2003 and Alexander 2007 are notable exceptions). With regard to a wide range of questions in social and political philosophy in particular, the limitations of game theory may seem unhelpfully abstract and artificial.