On 26 March 2014 04:35, Bruno Marchal <[email protected]> wrote: > On 24 Mar 2014, at 20:32, [email protected] wrote: > > Is there anything in particle physics that emulates the processing > capabilities of computers, analog or digital? My question goes below > Chaitin's metabiology. Something that is a characteristic of physics. > > Theoretically, you can emulate a universal computer with billiard balls, > on an infinite table. I think that classical physics needs three bodies to > emulate a universal machine. QM needs 0 bodies, as the quantum vacuum is > already Turing Universal, and even emulates "naturally" a universal quantum > dovetailer (making it into a possible comp measure winner). > > Just three? Wow! (I assume it also needs no friction, perfectly elastic collisions and what-have-you?)
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