On Sun, Jan 20, 2019 at 5:55 PM Philip Thrift <cloudver...@gmail.com> wrote:

> As for LQG's "quantum geometry" being empirical, as I posted before
> *Glimpses of Space-Time Beyond the Singularities Using Supercomputers*
> https://arxiv.org/abs/1809.01747

I see nothing empirical in that, it's a supercomputer simulation. It's
saying "maybe this is what's going on when things get smaller than the
Planck length", well maybe it is and maybe it isn't. I saw no experiment or
even a proposed  experiment that could tell us. Perhaps someday Loop
Quantum Gravity or String Theory will be able to make a testable prediction but
they're not there yet so until then it's mathematics not physics.

> Why are people so wedded to the traditional spacetime.

Because they're wedded to the scientific method.  I asked before how you
could perform an experiment without making use of space or time but
received no answer.

 John K Clark

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