I accept the premise that Singer uses to discuss most of the ethics issues presented in the book just like the implications of it. That said, while reading the book I realized that it could be possible that game theory consideration could have drastic implications in how we should interpret the "equality of consideration of interests" which is an utilitarian principle that drives decisions by maximization of a quantity. Whether this quantity is defined or not it out of the scope of this comment, yet I can say that in many scenarios of intelligent agents iterating the boundaries of the optimization differ a lot. The proportion of agents with specific strategies is also a parameter that is hard to measure but the difference that it causes implicates that the utilitarians' ethical principle of equal consideration of interests might be analysed from two perspectives. First, the perspective of a single agent on a given environment and configuration of population. Second, a societal perspective of what would be the best strategy if all agents would implement the same strategy. This insight will certainly make me dive deeper on both, ethics and game theory for policy making.