Brent Meeker wrote:
> 1Z wrote:
> >
> > Brent Meeker wrote:

> > The underlying physics of the thing will tell youwhether
> > it is capable of supporting countefactuals without
> > running a programme at all. There is something objectively
> > machine-like about machines -- complex , but predictable
> > behaviour.
>
> But so far as we know all machines, all physical objects, are described
> by quantum mechanics and therefore are subject to random variations,
> i.e. they could have done otherwise.

That applies to your PC. How often does it randomly crash ?

> So I don't see how that helps in
> distinguishing computation from noise.

You can't tell the difference between doing something
random once every day and doins something
random billions of times a seconc ?

>  Are you thinking of abstract
> computation - which of course can be deterministic if you rule out
> randomness in the abstraction?

we construct machines to rule out randomness within
certain limits.

> Brent Meeker


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