 We might think of these presuppositions as heuristics, rules that if followed usually aid us in the pursuit of truth but in certain contexts can be rationally doubted. Perhaps they do not necessarily determine what it is rational to believe or accept. In moral philosophy, anti-utilitarians often claim that there are many moral rules that prohibit lying, cheating, stealing, torturing, etc, and that these rules sometimes require people not to maximize utility. Act utilitarians often respond by saying that these are useful guides to doing what has the best consequences, but they are not definitive of what makes actions right or wrong. Wright’s presuppositions seem to be analogous to what act utilitarians see as heuristics or secondary rules.