 Here Nozick makes things too easy for himself by ascribing to the utilitarian a belief in a social entity—as Rawls makes things too easy for himself by saying that the utilitarian argument depends on fusing or conflating persons. For the utilitarian may simply hold that the best explanation for the rationality of a given person incurring some cost for herself in order to avoid some greater cost for herself is the unrestricted rationality of minimizing net costs (or maximizing net benefits). According to this utilitarian, we do not have to move from the principle of individual choice to the principle of social choice. For, we start with the unrestricted rationality of minimizing costs (or maximizing benefits); and the principle of individual choice is simply the application of that principle of social choice to the special case in which there is only one agent who is also the one subject of benefits and costs.