 The Duty Argument presupposes that there are various kinds of rationality. Many Evidentialists, as well as many opponents of Evidentialism, also assume that there are various kinds of rationality. What if however there is only one kind or standard of rationality? What impact would that have on the debate? Susanna Rinard argues that it is best to reject the idea that there are various kinds or standards of rationality, and replace that idea with an equal treatment idea that all states – whether doxastic or not – face a single standard of rationality (Rinard 2017). Equal treatment of states – states like carrying an umbrella, or walking the dog, or voting for this candidate over that, or forming a belief in God – provides greater theoretical simplicity than does the idea that there are various standards or kinds of rationality. Equal Treatment also better explains the methodological attraction of simplicity in science than does the idea that there are various kinds of rationality, Rinard argues. If the equal treatment of all states idea is correct, then doxastic states would face the same standard of rationality as states of action. The Equal Treatment idea provides an additional objection to Evidentialism insofar as Evidentialism implies that beliefs are subject to one standard, while other states are subject to another standard.