Neil Turok, Director of the Perimeter Institute of Theoretical Physics in Ontario, Canada suggests scaling invariance is a fundamental property of nature, including spacetime. that nature does not recognize any kind of scale, including planck scale.(adsbygoogle = window.adsbygoogle || []).push({});

if true how would this affect the leading theories of QG like string theory LQG etc. are there any theories of gravity and quantum gravity that respect scaling invariance? how would gravitons be affected if nature is scaling invariant?

Turok seems to think scale symmetry is a fundamental symmetry.

since scale is important in the real world, what breaks this symmetry?

what does this mean for the other symmetry supersymmetry?

he also thinks the higgs might also exhibit scaling invariance http://www.perimeterinstitute.ca/people/Neil-Turok

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# Spacetime scaling invariance and quantum gravity

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