On Sat, Mar 30, 2013 at 07:15:00PM -0500, Joseph Knight wrote:
> Sorry for the vagueness of my question; I would not count pi as a physical
> constant. I would count the empirically determined circumference:diameter
> ratio for a circle in our observed curved spacetime as a physical constant.
> The reason I asked is because Bruno has repeatedly claimed that
> COMP=>"noncomputability of physics" but I'm wondering what exactly this
> would mean in practice.

IIUC, it means that what he calls "first person indeterminancy" will
manifest itself as genuinely random phenomena, which is by definition
uncomputable. An example of such phenomena might be the timing of beta
decay of atoms, which is widely believed to be truly random.



Prof Russell Standish                  Phone 0425 253119 (mobile)
Principal, High Performance Coders
Visiting Professor of Mathematics      hpco...@hpcoders.com.au
University of New South Wales          http://www.hpcoders.com.au

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