What's the empirical or physical content of this belief?
I'll take a stab at explaining this with a simple thought experiment.
Say there are two people, Alice and Bob, each with their own unique brain states.
If Alice's brain state changes slightly, from getting older, learning something new, losing some neurons to a head injury, etc, she will still be Alice. Changing, adding, or removing a neuron does not change this fact.
Now what if instead part of her brain state was changing slowly to match Bob's? You could think of this as incrementally removing Al...
I agree with you that the LLM's job is harder, but I think that has a lot to do with the task being given to the human vs. LLM being different in kind. The internal states of a human (thoughts, memories, emotions, etc) can be treated as inputs in the same way vision and sound are. A lot of the difficulty will come from the LLM being given less information, similar to how a human who is blindfolded will have a harder time performing a task where vision would inform what state they are in. I would expect if an LLM was given direct access to the same memories...
It's not just that it implies faster-than-light communication, it's that it implies communication at all.
Experiencing both bodies at the same time, you will be able to take actions in one body that you wouldn't have done without the other one. It seems odd that with no biological changes to your brain, the mere existence of another similar brain changes how this one functions. Why would they be linked? This implies the observer is some external soul-like thing that can manipulate matter. If you can't take actions based on your... (read more)