On Thu, Sep 19, 2013 at 10:18 AM, Bruno Marchal <marc...@ulb.ac.be> wrote:

> >> A computation is a process.
> > I can agree with this, unless you meant a "physical process", OK.

As Rolf Landauer said "Computation is physical", all computations must use
energy and generate heat. And what's the difference between a physical
process and a non-physical process anyway?

  John K Clark

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