if you have a sore arm, raising it would require effort, however, “as you effortfully try to raise your sore arm, you also effortlessly try to balance and orient the rest of your body” (p. 179). But is this an instance of trying to do something both effortfully and effortlessly? Or is it an example of an action composed of two (or more) sub-actions: one effortful, the other effortless? And if the latter, what is one to say about these sub-actions taken individually. In particular, would the arm raising, itself be both effortful and effortless?
