On 30 Dec 2013, at 19:33, meekerdb wrote:

On 12/30/2013 1:41 AM, Bruno Marchal wrote:

On 30 Dec 2013, at 02:59, meekerdb wrote:

On 12/29/2013 4:41 PM, LizR wrote:
On 30 December 2013 09:35, Edgar L. Owen <edgaro...@att.net> wrote:
Liz,

Good questions. The computations take place in P-time which is the universal processor cycle in which they execute. The results of the computations compute dimensional space and CLOCK time.

So an external time dimension is required.

So imagine a universe with a time dimension and some space-less computations...I'll try.

This shouldn't be any harder than imagining Bruno's Turing machine computing everything...including space and time.

Space, time and physical things are not computed. They emerge in the view of "self-aware" Löbian machine, which exist in arithmetic.

But not all of arithmetic is computed by the UD,

OK. The UD, seen as a prover, proves only the "ExP(x)" truth, but of course it obeys itself to the whole of arithmetic, for example, it will never emulate a correct machine proving a false pi_1 statements (AxP(x)).



so how can you be sure that this Lobian machine emerges?

Because the existence of some Löbian machine is a sigma_1 (even sigma_0) sentence, as his the existence of their finite piece of computational histories.



How does it emerge?

The UD, alias RA, emulates all machines.



And if there is one, aren't there indefinitely many emerging?

Yes, there are infinitely many emerging, and that is why there is a global relative 1-indeterminacy on the whole UD*, or RA emulation.

Bruno




Brent

The universal machine does not compute everything---only the sigma_1 truth. With comp "everything" is the whole arithmetical truth, not just all computations. It is also the truth about those computations, and 99,999 % of those truth are not computed by any machine. Goldbach conjecture is true of false, but not computed. It may be be proved by this or that machine, but that is independent of its truth or falsity.

To understand comp, you need only to conceive that some can have the faith of surviving with a digital brain. The TOE itself asks you just to believe in addition and multiplication.

Bruno




Brent

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