Add to ORKGAccording to John McDowell, to be autonomous implies to be responsive to reasons, to inhabit the logical space of reasons. To challenge that thesis, one could argue that: 1) any attempt to mark the boundary of the “space of reasons” fails, due to the admission of something that is beyond the received view of Reason; 2) plain fitness, at a naturalistic level, is a good reason to act; 3) in some respect, autonomy depends on the difference between the abilities of cognitive systems and the features of their environment. It is questionable whether a similar “autonomy” could be traced in a pure logical space; presumably, we must dwell in a ruder space, where physical, biological and psychological properties perform specific tasks