On 9/18/2013 10:24 AM, John Clark wrote:


    > Should other theories (quantum loop gravity) which potentially offer more 
scope
    for falsifiability receive a greater proportion of the available resources.


So far quantum loop gravity is no better at making testable predictions than string theory is.

Actually I think LQG predicts that there should be some dispersion for very energetic photons. A prediction that seems to have be falsified by the simultaneous arrival of different energy gamma rays from very distant supernova. The result indicates spacetime is smooth down to 0.002 of the Planck length.


http://arxiv.org/abs/1109.5191v2

Brent

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