  Incompatibilist accounts of autonomy take many subtly different forms. So do the three other (compatibilist) accounts mentioned here. Some of the differences reflect disagreements over the extent to which the relevant conditions—coherence among higher- and lower-order attitudes, responsiveness to reasons, responsiveness to reasoning, freedom from determination by external causes—must actually obtain when an agent determines her will, or whether it is enough that under certain specified circumstances the agent would relate to her motives in the stipulated manner. There is also a difference of opinion about the scope of the relevant capacities: Must an autonomous agent be capable of responding to a wide range of reasons for and against her action? or is it enough that her motives are responsive to the “strongest,” “most compelling” reasons? and can these reasons include the sort of credible threats that figure in cases of coercion? What range of attitudes must an autonomous agent be capable of calling into question?  How well must she be capable of reasoning? Does it matter whether she is guided by certain principles of rationality? Must it be possible for her to draw different conclusions on the basis of the reasons she considers? Is it essential that she could have considered a different set of reasons instead?