Consciousness is an embarrassment to functionalism and to the computational-representational theory of mind. Whatever the causal and/or computational role of a mental state, it seems that same function might be performed without consciousness. So functionalism or computationalism which would identify a mental state with its causal or computational role cannot account for consciousness. (Unless it can be shown that being conscious changes the causal or computational role of a mental state.) It would be convenient, then, for the functionalist or computationalist, if someone could show that consciousness does not exist.