  Action theory: It is widely believed that psychological explanation hinges on the possibility of mental causation. If your mind and its states, such as your beliefs and desires, were causally isolated from your bodily behavior, then what goes on in your mind could not explain what you do (Davidson 1963; Mele 1992; for dissent, see “noncausalists” such as Ginet 1990; Sehon 2005; Tanney 2013; and see the essays in D’Oro 2013). These observations about agency suggest a more basic conceptual point: if minds did not influence behavior, in what sense would anyone truly act? Sounds would be made, but no one would mean anything by them. Bodies would move, but no one would thereby do anything (Malcolm 1968; Horgan 2007).