 First, note that the subject of the infinitival construction (“How to Φ”), or PRO, can either be interpreted de se (de se PRO) or generically (generic PRO). According to the first interpretation, that an agent knows how to perform a ski stunt requires their knowing how to perform a ski stunt themselves. According to the latter interpretation, it requires knowing how one (as a generic agent or any other agent) would perform a ski stunt. When it comes to ascriptions of knowledge-how, we care about de se, and not generic, readings of knowing how. If an agent knows how to Φ in the relevant sense, they know how to Φ themselves. 