On Mar 9, 3:06 pm, Jason Resch <jasonre...@gmail.com> wrote:
> On Tue, Mar 8, 2011 at 10:14 AM, Brent Meeker <meeke...@dslextreme.com>wrote:
>
>
>
> > On 3/8/2011 3:14 AM, Andrew Soltau wrote:
>
> >> What I am driving at here is the same question as in the email Comp.
> >> Granted that all possible states exist, what changes the point of the
> >> present moment from one to another. My referring to 'the thinker' was
> >> probably not a helpful metaphor. Given the universal numbers, what carries
> >> out the process whereby one is transformed into another? What makes the
> >> state of the thinker or the dreamer into the state of that entity at the
> >> next moment?
>
> >> Andrew
>
> > I think the idea is analogous to the block universe. In Platonia all the
> > states of "the thinker" and his relation to the world are "computed" in a
> > timeless way. The impression of time for "the thinker" is recovered by
> > putting the states into a sequence which is implicitly defined by their
> > content.
>
> > Brent
>
> Bruno and others,
>
> Do you think that computations performed by a computer or brain within a
> block universe contribute to the computational histories of a person? I can
> see why in a movie they do not, as there is no mathematical relation between
> the frames. However, in a universe ruled by equations, it seems to me that
> a computer in a universe is leveraging relations in math to perform
> computations, albeit less directly than a platonic Turing machine running a
> program.

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It seems to me that a physical computer is leveraging causality,
which is describable by some maths. Nothing happens "because"
of maths, since maths can also describe the acausal, the uncomputable
etc
> To me it is like running a simulation of a brain on a virtual
> machine on physical hardware. The VM provides a level of abstraction, but
> ultimately its computations are still computations. In the same way a
> mathematical universe is a level of abstraction yet could still provide a
> platform for genuine computation (not descriptions of computation) to be
> performed. What do you think?
>
> Jason
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