This claim has been challenged by both David Chalmers and AI professor Murray Shanahan by imagining what would happen if you instead gradually replaced the neural circuits in your brain by hypothetical digital hardware perfectly simulating them.25 Although your behavior would be unaffected by the replacement since the simulation is by assumption perfect, your experience would change from conscious initially to unconscious at the end, according to Giulio. But how would it feel in between, as ever more got replaced?
