Well, there's never a way for me to know whether solipsism is true, or to even calculate a (meaningful) probability of it being true. In fact, this applies to p

Well, there's never a way for me to know whether solipsism is true, or to even calculate a (meaningful) probability of it being true. In fact, this applies to probably infinitely many strange metaphysicses. All I know is that I'm conscious (or, more precisely, that "consciousness is"). I can say that "assuming the standard scientific metaphysics is correct, science might solve it," but that assumption is enormous and untestable.