On 19 May 2015 at 14:45, Jason Resch <[email protected]> wrote:
>
>
> On Mon, May 18, 2015 at 9:21 PM, Stathis Papaioannou <[email protected]>
> wrote:
>>
>> On 19 May 2015 at 11:02, Jason Resch <[email protected]> wrote:
>>
>> > I think you're not taking into account the level of the functional
>> > substitution. Of course functionally equivalent silicon and functionally
>> > equivalent neurons can (under functionalism) both instantiate the same
>> > consciousness. But a calculator computing 2+3 cannot substitute for a
>> > human
>> > brain computing 2+3 and produce the same consciousness.
>>
>> In a gradual replacement the substitution must obviously be at a level
>> sufficient to maintain the function of the whole brain. Sticking a
>> calculator in it won't work.
>>
>> > Do you think a "Blockhead" that was functionally equivalent to you (it
>> > could
>> > fool all your friends and family in a Turing test scenario into thinking
>> > it
>> > was intact you) would be conscious in the same way as you?
>>
>> Not necessarily, just as an actor may not be conscious in the same way
>> as me. But I suspect the Blockhead would be conscious; the intuition
>> that a lookup table can't be conscious is like the intuition that an
>> electric circuit can't be conscious.
>>
>
> I don't see an equivalency between those intuitions. A lookup table has a
> bounded and very low degree of computational complexity: all answers to all
> queries are answered in constant time.
>
> While the table itself may have an arbitrarily high information content,
> what in the software of the lookup table program is there to
> appreciate/understand/know that information?

Understanding emerges from the fact that the lookup table is immensely
large. It could be wrong, but I don't think it is obviously less
plausible than understanding emerging from a Turing machine made of
tin cans.


-- 
Stathis Papaioannou

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