 We can be more specific. A single privilege-right makes its holder “free to” in the sense of non-forbiddenness. A spy with a security clearance, for instance, may have a privilege-right that means she is free to enter a highly classified facility of her own government. One can be free in this non-forbidden way without having the physical ability to do what one is free to do. The spy, for instance, still has “no duty not” to enter the classified facility even when she is languishing in a distant foreign prison. The actions that one is free to do in this sense may or may not be physically possible for one at the moment, but at least they are not disallowed by the relevant norms.