2011/2/14 1Z <peterdjo...@yahoo.com>

>
>
> On Feb 14, 6:21 pm, David Nyman <da...@davidnyman.com> wrote:
> > On 14 February 2011 12:35, 1Z <peterdjo...@yahoo.com> wrote:
> >
> > > Oh come on. How can you say that after I just told
> > > you 7 doesn't exist.
> >
> > Wouldn't this then imply that computation also doesn't exist, in an
> > analogous sense?
>
> I can still have seven eggs in my fridge, and I can still
> have a computation running on a physical computer.
>
> >  And that consequently any computational
> > characterisation of the mental is in itself a mere fiction, reducing
> > to whatever physical behaviour is picked out under the rules of a
> > formal "game"?
>
> If computation is multiply realisable, it never reduces to
> any particular physical behaviour, even if it always instantiated a
> such
>
> >  I recall that you aren't committed to CTM per se, but
> > if what you say about mathematics is true, and only the physical is
> > real, wouldn't it follow a priori that CTM just eliminates the mind?
>
> No. Every running programme is physical. Only programmes
> with nothing to run on are eliminated
>
>
Programs are not written with physical instantiation in mind... even if
eventually you run it. What is important is the computation which doesn't
care about the physical instantiation as such.

When I stop executing a program does it cease to exist ? And come back to
existence the instant I run it ?


>  > I know you've said before that reduction isn't elimination, but I'm
> > not clear what is supposed to have any claim to "reality" here, other
> > than the physical tokens instantiating the "computation".
> >
> > David
>
>
> If you have a physical token running a computation, you have
> a computation. What is eliminated?
>
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