From the Lockean point of view, all the scientist may have discovered is that when the brain is in some specific state, we get symptoms of consciousness. But that might just tell us what consciousness is annexed to, by happenstance. It does not make the combination intelligible. And it also presupposes a right to shove the Zombie and Mutant possibilities out of sight, for otherwise the scientist could never establish the correlation, except at best in his or her own case.
