> How to prove: First step is to find some creature with nerves but provably lacking consciousness. This doesn't seem entirely workable, since it's impossible

> How to prove: First step is to find some creature with nerves but provably lacking consciousness. This doesn't seem entirely workable, since it's impossible to prove that anything is/isn't conscious without making auxiliary assumptions (Chalmers calls these "bridging principles"), and these auxiliary assumptions typically fall outside of scientific consensus. No one has conclusively proven that anything lacks consciousness, living or otherwise.