Inference and Its Role in Rational Action
Action, like knowledge, is portrayed in this chapter as having grounds, but neither acting nor knowing requires a basis in inference. We can view agency as information-responsive, reasons-responsive, and rational without endorsing such intellectualist views. Acting for a reason need not be reasoned action. Beliefs or perceptible cues can guide intentional action without constituting knowledge. Intentions may have wide scope and complex content, much as beliefs can have complex propositional objects, and this enables a single intention to govern multiple deeds. Rational actions, moreover, are immensely various, extending to things we do rationally, without these actions being reason-based or even intentional. Granted, learning how to do many of the important things we do, say in speaking, playing instruments, and hiking, normally requires gaining propositional knowledge along the developmental route. Nonetheless, some propositional knowledge is like a ladder that, once having climbed up on it, we can do without.