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> I'm sure if you spliced an animal's nerves to different places, That's sort of right, yes. But if you put their nerves in the wrong devices, animals wouldn't
by mjburgess 5y ago
> I'm sure if you spliced an animal's nerves to different places,
That's sort of right, yes. But if you put their nerves in the wrong devices, animals wouldn't be intelligent at all. And these nerves are themselves plastic, ie., they arent like a CPU with a limited set of physical operations; nerves are part of the body and grow.
So intelligence is really bodily. Intelligence is something that occurs because your brain-motor-body system is highly plastic (at the celluar and whole-body level) and is capable of adapting itself to its enviornment competently in ways that we call "intelligent".
It isnt any computation properties of the brain which do this (if we impart any, we cannot impart them uniquely anyway, ie., they cant explain much). Rather it's the plasticity of the body (including the brain) which provides "the right device" for intelligence.
> Often two people do observe the same piece
Well it is literally the case that I showed a CPU running a "program" to several alien races, none could tell me what program it was running. Each could provide an essentially infinite number of different answers, depending on how they interpret the electrical signal. A program is a purely formal thing that describes no physical system uniquely.
Whereas if I showed animals to these aliens, they could actually describe what processes constituted their intelligence.
And likewise, if i showed them Gold; they could tell it apart from Silver.
Insofar as a really-existing digital computer has anything akin to intelligence, its because of how its devices behave. Ie., if you showed aliens the LCD, then they could say "well the LCD output is particular, and is intereptable 'this way'.".
We are easily fooled by the devices we attach to CPUs into thinking that the CPU is "computing" the device output. It isnt. We have just created an illusion: the keyboard button says '1', '+', '2' and the LCD says '3' and we think the CPU has computed 3.
But, looking at the CPU itself, it has actually "computed" an infinite number of things. The '1' signal could be interpreted abitaribly.
My point here is that talking about "computation" is a deeply unhelpful way to understand anything. It's a profoundly non-explanatory category (it cannot explain any physical system; it is just a formal specific we follow).
Once we throw that away. We can see more clearly that what enables animal intelligence is the character of their "devices". The physical plasticity of their tissues (their growth and adaption), their motor skills, and so on.
It is possible to describe a tiny subset of intelligence ("reasoning") by a formal system; but that misses why animals can reason in the first place. You don't get the capacity for reasoning by just making electrons dance in an observer-relative way. That requires the observer to already have that capacity.
The capacity itself is a property of the physical system, "the animal".
- lmm 5y ago> We are easily fooled by the devices we attach to CPUs into thinking that the CPU is "computing" the device output. It isnt. We have just created an illusion: the keyboard button says '1', '+', '2' and the LCD says '3' and we think the CPU has computed 3. > But, looking at the CPU itself, it has actually "computed" an infinite number of things. The '1' signal could be interpreted abitaribly. That's not really true. We could very easily connect up the CPU to flash a light 3 times, or use a speech synthesizer to say "three". The reason we call these systems "computers" is that we built them to compute like (human) computers, that is, to evaluate mathematical expressions. Understanding computation is useful, even essential, in understanding the behaviour of these systems, just as understanding language and grammar is useful in understanding the pattern of sounds that a person might make under particular circumstances, even though the relationship between particular sounds and particular meanings is arbitrary or at least underdetermined.