Physicists Find a Way to See the ‘Grin’ of Quantum Gravity
quantamagazine.org>Perhaps one clue as to why it is so much harder to quantize gravity than everything else is that other force fields in nature exhibit a feature called “locality” ... But “there’s at least a bunch of theoretical evidence that that’s not how gravity works.”
Really? I was under the impression that gravitational waves propagate at very nearly the speed of light.
Also, this article doesn't do a very good job of explaining why people are so certain gravity can be quantized. Gravity as a deformation of spacetime seems like a perfectly reasonable model to work with. Why should we think it doesn't reflect reality?
There was a speaker for January's Silicon Valley Astronomical Society lecture on this, and I asked him that very question. It turns out that the gravitational wave hit us before there was detectable change in light emissions.I was under the impression that gravitational waves propagate at very nearly the speed of light.