On 17 Oct 2012, at 22:02, Alberto G. Corona wrote:
2012/10/17 Alberto G. Corona <[email protected]>
2012/10/17 Bruno Marchal <[email protected]>
On 17 Oct 2012, at 10:12, Alberto G. Corona wrote:
Life may support mathematics.
Arithmetic may support life. It is full of life and dreams.
Life is a computation devoted to making guesses about the future in
order to self preserve . This is only possible in a world where
natural computers are possible: in a world where the phisical laws
have a mathematical nature. Instead of comp creating a mathematical-
phisical reality, is the mathematical reality what creates the
computations in which we live.
So all kind of arbitrary universes may exist, but only (some)
mathematical ones can harbour self preserving computations, that
is, observers.
OK. But harboring self-preserving computation is not enough, it must
do in a first person measure winning way on all computations going
through our state. That's nice as this explain that your idea of
evolution needs to be extended up to the origin of the physical laws.
I don´t think so .The difference between computation as an ordinary
process of matter from the idea of computation as the ultimate
essence of reality is that the first restrict not only the
mathematical laws, but also forces a matemacity of reality because
computation in living beings becomes a process with a cost that
favour a low kolmogorov complexity for the reality. In essence, it
forces a discoverable local universe... ,
In contrast, the idea of computation as the ultimate nature of
realtity postulates computations devoid of restrictions by
definition, so they may not restrict anything in the reality that we
perceive. we may be boltzmann brains, we may be a product not of
evolution but a product of random computations. we may perceive
elephants flying...
And still much of your conclussions coming from the first person
indeterminacy may hold by considering living beings as ordinary
material personal computers.
Yes, that's step seven. If the universe is enough "big", to run a
*significant* part of the UD. But I think that the white rabbits
disappear only on the limit of the whole UD work (UD*).
Bruno
Mathematics is just a collection of representations that are
internally logically consistent (note that the total mathematical
universe is not a single consistent set!), so outside of that what
is there? Comp is a mathematical model, its "support" outside of
math remains to be seen.
Comp, is a bet involving the physical world, and the first person
subject. But by its very nature, it leads to doubt the necessity to
bet about something outside of a tiny part of arithmetic, for the
ontology, as the "inside view" will already explode in a non
mathematically unboundable way.
You need only the Turing universal reality. It is not important to
choose numbers, or lambda terms, or combinators, or the game of life
pattern, as they all lead to the same couplings consciousness/
realities.
The arithmetical reality escapes the computable reality, but the
computed beings are confronted to both the computable and the non
computable, and a complete transfinite ladder of surprises.
Bruno
http://iridia.ulb.ac.be/~marchal/
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Alberto.
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Alberto.
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