 Because of its relatively recent recovery, and the prevalent acceptance of intention as a mental state, there has been little examination of the present alternative. But some observations can be made. First, it is in fact controversial that intending to do A is necessary for doing A intentionally, as the present theory predicts. This raises complications best considered later on, in sections 2 and 4. (They are briefly discussed at Thompson 2008, pp. 102–3.)