On Tue, Oct 22, 2013 at 02:49:40PM +1300, LizR wrote:
> I missed that 10^-48 is rather an impressive result. Is that definitive -
> granularity has to be that small - or merely suggestive?
> 
> It does suggest the possibility of a lot of internal structure inside
> "fundamental" particles!
> 
> 
> On 22 October 2013 14:43, Richard Ruquist <yann...@gmail.com> wrote:
> 
> > The 10^-48 meters for the upper limit on grannular size of space is better
> > compared to the Planck Scale at 10^-35.
> > So space is smooth at least to 10^-13 Planck scales consistent with Fermi
> > gamma ray arrival results. Gamma rays a factor of ten different in energy
> > arrived from across the universe at the same time whereas granularity would
> > delay one measurably.
> >
> >

Indeed this seems an important empiricial result, ruling out certain
classes of models, including, dare I say, Wolfram's NKS.

However, it does not rule out computationalism, nor the countability
of observer moments, as I've point out many time, as space-time is
most likely a model construct, rather than actually being something
physical "out there". It is something Allen Francom bangs on about too,
which I tend to agree with, although admittedly I've gotten lost with
his Brownian Quantum Universe models.

Cheers

-- 

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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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