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Cyan comments on Consciousness - Less Wrong
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Comments (221)
The reason lookup tables don't work is that you can't change them. So you can use a lookup table for, e.g., the shape of an action potential (essentially the same everywhere), but not for the strengths of the connections between neurons, which are neuroplastic.
A LUT can handle change, if it encodes a function of type (Input × State) → (Output × State).
Since I can manually implement any computation a Turing machine can, for some subsystem of me, that table will have to contain the "full computation" table that checks every possible computation for whether it halts before I die. I submit such a table is not very interesting.
I submit that such a table is not particularly less interesting than a Turing machine.