On Mon, Jun 29, 2015  spudboy100 via Everything List <
[email protected]> wrote:

​> ​
> Don't you wonder that this  incomputability, is created by the inadequacy
> of the instruments and systems we employ?


​No. We know for a fact from experiment (and not just from theory) that AT
LEAST one of the following must be true, some think 2 are, a few think all
3 are but most believe in realism:

1) Things are not realistic (stuff only exists when you look at it).
2) Things are not deterministic (some events have no cause).
3) Things are not local (the effect X has on Y is instantaneous and the
effect is not weakened by distance, and the future can change the past).
 ​

None of these 3 things are computable.


> ​> ​
> Another question is, does space-time compute at the Planck width


​Nobody knows. We don't even know for certain that the Planck length
actually means anything physical. We do know that ​

​if space-time is continuous then it can't be computable ​

  John K Clark

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