On 10 Jan 2014, at 22:51, meekerdb wrote:

On 1/10/2014 1:04 AM, Bruno Marchal wrote:

On 09 Jan 2014, at 23:00, Stephen Paul King wrote:

Dear LizR,

  That is the key question that remains, IMHO, unanswered.

It is answered, completely.




On Thu, Jan 9, 2014 at 4:45 PM, LizR <lizj...@gmail.com> wrote:
On 10 January 2014 10:33, meekerdb <meeke...@verizon.net> wrote:

I think the question is whether comp determines that the world is (locally) Lorentz invariant. If it is, then c is just a unit conversion factor between the + and - signature terms. It's value is arbitrary, like "how many feet in a mile", which is why it is now an exact number in SI units. Oh yes, I seem to remember that physicists like to set c (and h?) to 1.

So does comp predict that any TOE will have a unique solution - namely the one we experience?

Only from what we have just experienced before. Comp does not predict the existence of the moon, but should predict the physical laws, that is, what is invariant for all observers/machines.




So is this an alternative to the WAP - we experience a universe compatible with our existence because such a universe has to drop out of the interations of conscious beings in Platonia?

As I said, comp uses only a conditional probability, not a bayesian relation, which can still be used for geography and history. But the physical laws are defined by the general measure on the computation, which must exist with comp, and is given by the material points of view (Bp & Dt, mainly).


But can you prove within comp that there must be physical laws,

Yes. If not (that is if the physical laws were only the calssical boolean tuatologies), the material hypostases would have collapse into propositional calculus. So we are assured that some physics exists for any universal machines, and is the same for all of them.



can you prove that solipism is false,

Not yet, although Z1* suggests it to be false, as it should give the first person plural. Everett of course suggests that it exists empirically, and so comp should confirms that. The quantum nature of the Bp & Dt on the sigma_1 sentences shows that comp might indeed refute solipsism (statistically).


that it's not ALL geography and we have nothing to thank for our existence but WAP?

Only arithmetic.

Bruno



Brent

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http://iridia.ulb.ac.be/~marchal/



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