On Thu, Jun 4, 2015 , Bruno Marchal <marc...@ulb.ac.be> wrote: > >> A real physical device is much more complex, that is to say has many >> more attributes, than any of our algorithms. So if you have a simple thing >> and a complex thing you tell me which is making a simplified approximation >> of which. > > > > The supplementary attribute that the physical device possesses have > nothing to do with the algorithm >
And an algorithm has nothing to do with the supplementary attributes of the physical device. The physical device is far more complex than the algorithm, astronomically more complex, so you tell me which is a simplified approximation of which. > > You could say that a real circle is only an approximation/simplification > of a real physical circle, which is made of ink molecules, etc. Yes, a curve of ink molecules lying on top of a layer of cellulose molecules is astronomically more complex than the set of xy points that solve the equation (x-h)^2 + (y-k)^2 = r^2. So if a mathematical circle is only a simplified approximation of a (sorta) circle drawn on a paper why isn't a mathematical Turing Machine a simplified approximation of a physical electronic computer? John K Clark -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
