On 30.06.2012 22:31 meekerdb said the following:

On 6/30/2012 12:20 PM, Bruno Marchal wrote:On 30 Jun 2012, at 18:44, Evgenii Rudnyi wrote:I think that you have mentioned that mechanism is incompatible with materialism. How this follows then?Because concerning computation and emulation (exact simulation) all universal system are equivalent. Turing machine and Fortran programs are completely equivalent, you can emulate any Turing machine by a fortran program, and you can emulate any fortran program by a Turing machine. More, you can write a fortran program emulating a universal Turing machine, and you can find a Turing machine running a Fortran universal interpreter (or compiler). This means that not only those system compute the same functions from N to N, but also that they can compute those function in the same manner of the other machine.But the question is whether they 'compute' anything outside the context of a physical realization?

`Personally I am not sure if they compute anything even in a physical`

`realization. To make my point, let us consider some device that`

`implements a PID controller, the equation is in Wikipedia`

http://en.wikipedia.org/wiki/PID_controller#PID_controller_theory

`Now let us start with the M-theory (or any other) and consider the`

`functioning device in this framework. There is dynamics and evolution of`

`superstrings, however it is unclear to me what happens with the equation`

`for the PID controller in this context. Does it mean that the M-theory`

`computes the equation of the PID controller?`

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