 In the case of  (1),  the answer is easy: there are, in fact, many people who could free solo the Dawn Wall—notably, Tommy Caldwell and Kevin Jorgeson, the two who first free-climbed it. But it is at least logically possible that any human being do so—for any given person, it is easy to imagine perfectly consistent (if perhaps idealized and utterly improbable) scenarios in which they are massively healthier, stronger, and more skilled than they actually are and, so endowed, free solo the Dawn Wall. Thus,  (1)  is true because: