I think you should probably read Maudlin's
paper<http://www.finney.org/~hal/maudlin.pdf>for specifics. I don't
think thermodynamics will have much to do with the
conclusions, whatever they may be (and I don't think it's obvious what *exactly
*Maudlin showed).

On Mon, Feb 13, 2012 at 7:21 AM, Stephen P. King <stephe...@charter.net>wrote:

>  Hi Folks,
>
>     I have been mulling over my conversations with Bruno, Joseph and ACW
> in the EVERYTHING list and have a question. In SANE04 we read the following:
>
> "For any given precise  running computation associated  to some  inner
> experience, you
> can  modify  the  device  in  such  a  way  that the  amount  of
> physical  activity  involved  is
> arbitrarily  low, and even null  for dreaming experience which has no
> inputs and no outputs.
> Now, having  suppressed  that  physical  activity present in  the
> running  computation,  the
> machine will only be accidentally correct. It will be correct only for
> that precise computation,
> with unchanged environment.   If  it is changed a  little bit,  it will
> make  the machine  running
> computation no  more  relatively  correct.  But then,  Maudlin
> ingenuously  showed  that
> counterfactual  correctness  can be  recovered, by  adding  non active
> devices  which  will  be
> triggered only  if  some  (counterfactual)  change would  appear  in  the
> environment. Now  this
> shows that any inner experience can be associated with an arbitrary low
> (even null) physical
> activity,  and  this  in  keeping  counterfactual  correctness.  And
> that  is  absurd  with  the
> conjunction of both comp and materialism."
>
>     Setting aside the problem of concurrency for now, how is it that we
> are jumping over the difference between infinitely slow or even 
> "adiabatic<http://en.wikipedia.org/wiki/Adiabatic_process>"
> physical process and "null" physical process?
>
> I may be not even wrong here, but in math isn't it true that there is a
> big difference between a quantity being arbitrarily small and a quantity
> being zero? I suspect that the folks in FOAR List that have been discussing
> information and entropy might have a thought on this.
>
> Onward!
>
> Stephen
>
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-- 
Joseph Knight

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