  But Williams may not have intended to offer this argument. On a rival and unorthodox interpretation (Finlay 2009), Williams’ claim that practical reasons have an “explanatory dimension” is to be understood not simply as placing a constraint on what can be a reason, but as providing the essential meaning of our thoughts and claims about practical reasons. On this analysis the concept of a ‘reason for action’ just is the concept of an explanation of action, following Davidson. To think that the fact that the Alcove serves onion rings the size of doughnuts is a reason for Caroline to go there, is to think that the fact that the Alcove serves such onion rings is an explanation of Caroline’s going there.