Bruno Marchal skrev:
> On 22 Jul 2009, at 14:12, Torgny Tholerus wrote:
>> What do you think about the GoL-universes?  You can look at some of
>> those at .  If you have an initial
>> condition and you have an unlimited board, then you can compute what
>> will happen in the future in that universe.  
> What is an unlimited board for an ultrafinitist. (Ok, that was perhaps 
> easy).

An unlimited board is a board that is "enough" big.  How far away you 
look, you will see no border of the board.

>> These universes are
>> universes with a two-dimensional space and a one-dimensional time.  
>> These GoL-universes are mathematial universes.  They have an initial
>> condition and a mathematical rule that defines how that universe will
>> look like in the next moment, and the next next moment, and so on.
>> Does this make sense for you?
> Those are not universes, but computational histories.

What is wrong with computational histories?  If you can explain 
everything in our universe with a computational history, why do you need 
anything more?

> Assuming comp there is a first person indeterminacy, which makes 
> "physical appearances" or "physical universe" emerging from the 
> infinity of such computational and universal computation. I suggest 
> you read the UDA papers. I guess you were not yet on the list when I 
> explained why "Wolfram" sort of computational physics, based on 
> cellular automata, does not work.

Yes, I was not on the list then.  And all the time when I have been on 
the list, I have wondered what COMP is?

> And quantum mechanics confirms this by giving indirect but strong 
> evidences on the existence of many statistically interfering computations.

I do not believe in that quantum mechanics implies statistically 
interfering computations.  I believe that quantum mechanics is 
deterministic.  Microcosmos looks indeterministic just because we do not 
know yet what is happening at the Planck scale.  You must think of that 
a quark is times bigger than the Planch 
length, so many things can happen in that interval.

Torgny Tholerus

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