> But there are plenty of cancers that can and do occur in ones reproductive years, that start without pain.
So? The incidence of these cancers is insufficient to impact reproductive fitness in our species. At no point did I claim that all damaging processes must produce pain, I only claimed that all pain originates from evolutionary pressures indicating high chance of damage that does impact fitness. That also does not mean that presence of pain is always directly indicative of damage, because biology is messy and precision has a cost to fitness.
> At least you agree computation (a process) is not the important thing, but particles (matter).
Nope, not what I'm saying at all. The particles are a computation in a simulation, so the information content of the computation is what matters.
> Wow, now you're making a circular argument. Whats a “faithful” simulation of a human? How would we know it is “faithful”? What form would that even take?
A faithful simulation is clearly a simulation that contains all of the information content of a human and replicates the mathematical relationships that govern the operation of a human's mind. Since a human is a bounded volume, it contains finite information per the Bekenstein Bound, and is thus amenable to simulation, unless you are asserting some kind of non-physical dualism.
It seems clear that you don't yet grasp the argument being made so maybe you should reserve judgment, like calling the argument "circular", until you do properly grasp it.
> Let’s say ChatGPT becomes “sufficiently” advanced, and is hooked up to a sensor that records the temperature of the sun. Would it feel the heat?
It wouldn't feel heat in the same way that humans feel heat because its sensor and information processing is not mathematically equivalent to human information processing and sensory systems. That does not mean it wouldn't feel something like its own version of heat. A whole lot of vagueness hides behind your "sufficiently advanced".
If ChatGPT v10.0 did reproduce the mathematical relationships underlying human information processing and sensory systems, then yes, it would feel heat in precisely the same way as humans do.