Refuting your illusionism about your own experiences is very easy; all that you have to do is look at your hands. If that can be denied by some razor, then so can all of science and mathematics as well.
This is the reason why I think it is important to treat repeatable experiences that can be verified by others as evidence. Of course, this already assumes that the world and physics are exist, as well as other people.
Under this principle, your hands are verifiable. But your qualia of colors is not; only that you have some way of distinguishing wavelengths.
Refuting your illusionism about your own experiences is very easy; all that you have to do is look at your hands. If that can be denied by some razor, then so can all of science and mathematics as well.
This is the reason why I think it is important to treat repeatable experiences that can be verified by others as evidence. Of course, this already assumes that the world and physics are exist, as well as other people.
Under this principle, your hands are verifiable. But your qualia of colors is not; only that you have some way of distinguishing wavelengths.
Why does evidence need to be approved by other people? If you were alone on an island, would that make it impossible for you to learn anything?