I am Joe's explanatory gap
Abstract
_tableau_ can be given a full and satisfying explanation, while others cannot. We can explain in a full and satisfying way why the water in the mug is identical with H2O, why its liquidity is identical with a state of its molecular bonds, and why its heat is identical with its molecules being in motion. But we cannot explain in the same way why the neural processes which Joe undergoes when he looks at the mug are such as to make the mug look green, and not red. The latter explanations have gaps