Ordinarily, when we’re talking to a person, we tend to think that whatever is inside the skull must be “where the consciousness is.” It’s only by playing Follow-The-Improbability that we can realize that the real source of the conversation we’re having is that-which-is-responsible-for the improbability of the conversation—however distant in time or space, as the Sun moves a wind-up toy. “No, no!” says the philosopher. “In the thought experiment, they aren’t randomly generating lots of GLUTs, and then using a conscious algorithm to pick out one GLUT that seems humanlike! I am specifying that,
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