On 26 May 2013, at 04:00, meekerdb wrote:


Whether or not it is recorded or extractable in this universe is immaterial. If the universe is infinitely large or infinitely varied, we each reappear an infinite number of times. There are a countably infinite number of programs, and for any given level of complexity, there is a finite number of possible programs shorter than some length. Any consciousness we simulate is the consciousness of something that exists somewhere else in the infinitely varied/infinitely large universe, and if the universe is really this big, then someone else far away could simulate you perfectly without having to extract a record of you. Just running Bruno's UDA for a long enough time "ressurects" everyone, we are all contained in that short program.


To which, one is tempted to respond: So what? If there is all this simulation going on, what reason is there to suppose it is being done by being anything like us or that the worlds in which the simulations take place (the "real" ones, if there are any) are anything like this one.

Because the FPI makes "this one" a statistical sum on all possible one.





You are simply led back to trying to discover what are possible worlds, where "possible" can be anything from "familiar enough I can understand it" to "nomologically possible" to "not containing contradictions".

Possible means "livable from a first person point of view in such a way that you would not see the difference above the substitution level". Below the substitution level, everyone (humans, alien, numbers ..) see the same average on all computations, which, due to the constraints of self-reference and theoretical computer science is a well structured, highly complex, mathematical object.

So what? So physics is reduced to arithmetic, or to machine theology... and this in a way which saves humans from reductionism. It makes also comp into science and out of philosophy. All this leads to a different, platonist and non aristotelian, view on "reality". It makes "Matter" into a failed hypothesis (Matter =primitive matter).

Bruno



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



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