On Saturday, February 23, 2019 at 7:25:21 AM UTC-6, John Clark wrote:
> On Fri, Feb 22, 2019 at 11:08 PM <agrays...@gmail.com <javascript:>> 
> wrote:
> > *In GR, the paths are determined by geometry in the absence of forces, 
>> not by mediating particles.*
> Yes, that's because General Relativity is a classical theory that is not 
> quantized, it has so far passed every experimental test posed to it with 
> flying colors but we know it can't be entirely correct because when we ask 
> it what happens when things become very small and very massive, such as in 
> the center of Black Holes, it gives the absurd answer of infinity. Neither 
> Quantum Mechanics or General Relativity works when things get massive and 
> small, perhaps quantizing General Relativity will fix this or maybe there 
> is some other way to do so. Nobody knows.
>  > *I could be mistaken, but I see gravitons as being part of a distinct 
>> theory of gravity, which might give the same results as GR,*
> Nobody has ever experimentally detected a graviton and it's extremely 
> unlikely anybody ever will, so if they make the same predictions as 
> standard General Relativity there would be no point in introducing the 
> idea. 
>  John K Clark

If all experiments proposed to determine if gravity is quantized* fail*

 Such measurements, they say, could enable them to uncover the quantum 
nature of gravity and determine whether or not gravity is quantized.


that is: the search for a quantized gravity is a wild goose chase

what do theorists do then?

(I asked Hossenfelder. No answer.)

- pt 

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