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Laoch comments on Eight questions for computationalists - Less Wrong
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There is too much vagueness involved here. A better question would be if there is any reason to believe that even though evolution could create consciousness we can not.
No doubt we don't know much about intelligence and consciousness. Do we even know enough to be able to tell that the use of the term "consciousness" makes sense? I don't know. But what I know is that we know a lot about physics and biological evolution and that we know that we are physical and an effect of evolution.
We know a bit less about the relation between evolutionary processes and intelligence but we do know that there is an important difference and that the latter can utilize the former.
Given all that we know, is it reasonable to doubt the possibility that we can create "minds", conscious and intelligent agents? I don't think so.
I reject the "Consciousness is really just computation" if you define computation as the operation of contemporary computers not brains, but I wholeheartedly agree that we are physical and an effect of evolution as is our subjective experience. I just don't think that the mind/consciousness is solely the neural connections of ones brain. Cell metabolism and whole organism metabolism and the environment of that organism define the concious experience also. If it's reduced to a neural net important factors will most certainly be lost.
Does this mean that amputees should be less conscious?
Maybe not with humans, but definitely for octopuses!
(More seriously, depending on how seriously you take embodied cognition, there may be some small loss. I mean, we know that your gut bacteria influence your mood via the nerves to the gut; so there are connections. And once there are connections, it becomes much more plausible that cut connections may decrease consciousness. After a few weeks in a float tank, how conscious would you be? Not very...)
I'm pretty sure that you agree that none of this means that a human brain in a vat with proper connections to the environment, real or simulated, is inherently less conscious than one attached to a body.
I don't take embodiment that far, no, but a simulated amputation in a simulation would seem as problematic as a real amputation in the real-world barring extraordinary intervention on the part of the simulation.
No but subjective conscious experience would change definitely.
Well, that ought to be testable. If he upload a human, and the source of consciousness is lost, they should stop feeling it. Provided they're honest, we can just ask them.
That could very well be the case.
Well, you're a p-zombie, you would say that.