The Phenomenal Experience of Mary

This is a particular kind of first person experience. It has the advantage of it being tied into a physical characteristic that you may or may not have. There are other kinds of animals that see in frequency spectrum that are very different, much wider than this physical spectrum that we're available to. And it's completely conceivable that I could have an entity that could visualize x-rays, visualize all kinds of other electromagnetic spectra and therefore have a set of phenomenal experiences like seeing things that I know about  in the way that Mary knows about things.