On Thu, May 9, 2019 at 7:54 PM 'Brent Meeker' via Everything List <
[email protected]> wrote:

>
>
> On 5/9/2019 5:18 PM, Jason Resch wrote:
> >
> > That all subjectively indistinguishable computations going through
> > that state are a possibility means the consciousness cannot identify
> > itself with any one particular thread of computation. In this sense
> > that consciousness is not the same as one of the programs passing
> > through that state.  But to say the consciousness is not identical
> > with one of the computations is different from saying that computation
> > is not conscious.  If none of the threads of computation resulted in
> > consciousness, you wouldn't magically get consciousness once you
> > reached an infinite number of them.  The only thing you gain with the
> > infinite number of all the computations going through that state is
> > the correct statistics regarding the future evolution of that conscious.
>
> "The state" seems a problematic concept to me.  It tries to roughly
> equate a state of consciousness, a thought, with a state of a Turing
> machine (plus tape).



I would distinguish between thoughts and machine states.  Consider a
physical brain, with many interacting neurons running in parallel.  To
represent some unit of time of neuronal interaction would require for a
conventional von Neumann architecture computer, a long string of
processing.  Or more simply, if you imagine computing the next state of a
100x100 Game of Life universe, it requires a Turing machine to process many
steps in a sequence before it produces the next Game of Life state.  I
think it is similar with thoughts, a thought involves much more than a
simple arithmetical operation applied to a single 64-bit register.


>   But saying yes to the doctor implies a much lower
> level of substitution than "a thought".


To be clear the doctor is replacing part of your brain (e.g. let's say a
cluster of 1,000,000 neurons with some digital machinery.  Rather than
replacing a single thought of yours.  It is up to the continuing operation
of your brain, working with this digital part, to maintain your stream of
consciousness.


> Thoughts come from perceptions,
> among other things, which are not complete thoughts or "states of
> consciousness".  So it is not at all clear what it means for
> "computations going thru that state" when the state may refer to
> thousands of steps of the Turing machine.  Is a computation thread that
> share 999 of the states "going thru the state"?


I view "computations going though my state" as those computations which
exceed the level of accuracy necessary for my consciousness to continue
uninterrupted.  For example, say there was a Mark I neuronal cluster chip
which simulates only the inputs and outputs of the 1M neurons using a
lookup table, then there is a Mark II which simulates the neurons, a Mark
III model which simulates the neurons glial cells and some of the
biochemistry, and a Mark IV which simulates the molecules and proteins, and
a Mark V that simulates all the atoms of those neurons.  It may be that
Mark I - Mark III are insufficient, and would lead to perceptibly different
states of consciousness for me. While Mark IV - V are accurate enough that
they preserve my consciousness.  In this case the computations of the Mark
IV and Mark V chips, while different, both support my conscious state.


> And to further
> complicate this mapping between thoughts and machine states, there
> sequence of machine states is the same at the temporal order of thoughts.
>
>
It can add confusion, it is best to view that as coincidental. Though there
may be a deep relation, between our existence in a universe having the
property of time, and our existence as computations.

Jason

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