On 26 Mar 2014, at 01:31, LizR wrote:
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 think. Not yet seen a proof, but I think 3 bodies are enough.
(I assume it also needs no friction, perfectly elastic collisions
and what-have-you?)
Yes, sure.
Bruno
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