Groups > comp.lang.java.programmer > #2538

Re: The halting problem revisited

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From	Dirk Bruere at NeoPax <dirk.bruere@gmail.com>
Newsgroups	comp.lang.java.programmer
Subject	Re: The halting problem revisited
Date	Tue, 29 Mar 2011 13:22:07 +0100
Organization	Dirk Bruere at Neopax
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On 29/03/2011 12:49, javax.swing.JSnarker wrote:
> On 29/03/2011 12:21 AM, Dirk Bruere at NeoPax wrote:
>> On 29/03/2011 00:05, Stefan Ram wrote:
>>> Joshua Cranmer<Pidgeot18@verizon.invalid> writes:
>>>> Heisenberg's uncertainty principle only states that we don't know the
>>>> (P)RNG of the world.
>>>
>>> Only since as recent as 2010 we have
>>>
>>> »evidence that quantum randomness is indeed
>>> incomputable. That means that it could not
>>> have been be generated by a computer.«
>>>
>>> http://www.technologyreview.com/blog/arxiv/25041/
>>>
>>> »Ref: arxiv.org/abs/1004.1521:
>>>
>>> Experimental Evidence of Quantum Randomness
>>> Incomputability«
>>>
>>> http://arxiv.org/abs/1004.1521
>>
>> I do not see that the paper demonstrates that the process underlying QM
>> randomness is not algorithmic.
>>
>> However, I do not believe it is algorithmic.
>> QM randomness seems to be a result of asking questions for which there
>> is no physical answer.
>
> Actually, QM randomness is a symptom of indexical uncertainty about
> which exact universe you're in out of many that look identical up to a
> certain point in time and then diverge, more or less.
>
> In fact, copies of you end up experiencing each possible universe that
> has you in it, so the uncertainty is really about which *you* you are
> out of many that have had thus-far-identical experiences.
>
> Which means the randomness is actually in data from a source external to
> any computer inside the universe. But if you simulated the whole
> multiverse, by just running Schrödinger's wavefunction for the initial
> state forward without collapse, in that simulation would be implicit
> emulations of the smaller computer, each receiving a different random
> bit-string -- and all embedded in a deterministic whole.
>

That's what I said (in a different way)!
But I agree with you that it is a plausible mechanism in the MWI context

-- 
Dirk

http://www.neopax.com/technomage/ - My new book - Magick and Technology

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Re: The halting problem revisited "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2011-03-29 07:49 -0400
  Re: The halting problem revisited Dirk Bruere at NeoPax <dirk.bruere@gmail.com> - 2011-03-29 13:22 +0100
    Re: The halting problem revisited "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2011-03-29 08:35 -0400
    Re: The halting problem revisited Lew <noone@lewscanon.com> - 2011-03-29 11:39 -0400
      Re: The halting problem revisited Dirk Bruere at NeoPax <dirk.bruere@gmail.com> - 2011-03-29 16:55 +0100
        Re: The halting problem revisited Lew <noone@lewscanon.com> - 2011-03-29 11:59 -0400
          Re: The halting problem revisited Dirk Bruere at NeoPax <dirk.bruere@gmail.com> - 2011-03-29 17:18 +0100
  Re: The halting problem revisited Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-03-31 13:15 +1300
    Re: The halting problem revisited "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2011-04-04 20:36 -0400

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