On 10 May 2014 22:12, Telmo Menezes <[email protected]> wrote: > On Sat, May 10, 2014 at 8:30 AM, LizR <[email protected]> wrote: > >> On 10 May 2014 17:30, Stathis Papaioannou <[email protected]> wrote: >> >>> >>> >>> On Saturday, May 10, 2014, LizR <[email protected]> wrote: >>> >>>> I guess one could start from "is physics computable?" (As Max Tegmark >>>> discusses in his book, but I haven't yet read what his conclusions are, if >>>> any). If physics is computable and consciousness arises somehow in a >>>> "materialist-type way" from the operation of the brain, then consciousness >>>> will be computable by definition. >>>> >>> >>> Is that trivially obvious to you? The anti-comp crowd claim that even if >>> brain behaviour is computable that does not mean that a computer could be >>> conscious, since it may require the actual brain matter, and not just a >>> simulation, to generate the consciousness. >>> >>> If physics is computable, and consciousness arises from physics with >> nothing extra (supernatural or whatever) then yes. Am I missing something >> obvious? >> > > Yeah, I always feel the same about this sort of argument. It seems so > trivial to disprove: > > "even if brain behaviour is computable that does not mean that a computer > could be conscious, since it may require the actual brain matter, and not > just a simulation, to generate the consciousness." > > 1. If brain behaviour is computable and (let's say comp) > 2. brain generates consciousness but > 3. it requires actual brain matter to do so then > 4. brain behaviour is not computable (~comp) > > so comp = ~comp > > I also wonder if I'm missing something, since I hear this one a lot. > > OK, but if *physics* is computable then the rest follows (doesn't it) ?
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