  There are even disagreements over whether the reasons to which self-governing agents respond are, as most assume, practical considerations concerning what to do, or what is worth doing. It has been suggested that agents govern their actions by engaging in theoretical reasoning to the end of forming beliefs about which modes of behavior they could explain, given their desires. (Velleman) This suggestion stresses the extent to which governing oneself involves deferring to psychic demands whose power is independent of one’s authority. On this picture, an agent exercises authority over what she does only once she is faced with a set of possible actions, whose possibility reflects their compatibility with the causal power of her desires: in predicting that she will perform one of these actions, she authorizes this action, and thereby strengthens her motives for performing  it.[12]