Thau (2002, Ch. 5) holds a similar view, but there are some important differences. First, Thau’s argument does not turn on the need to secure spectrum inversion without misrepresentation, and instead deploys an adaptation of Jackson’s (1982) thought experiment concerning black-and-white Mary. (See the entry on qualia: the knowledge argument.) Second, because Thau is not concerned to ensure that neither Invert nor Nonvert is misperceiving the tomato, he does not try to argue that the tomato has