Well, let's look at MOND. Wikipedia says "In physics, Modified Newtonian Dynamics (MoND) is a theory that proposes a modification of Newton's law of gravity to explain the galaxy rotation problem."
I don't see anything there about a universal law, such as we need to fix the disconnect between GR and QM. It is simply a different approach to Newton's law of gravity. It certainly doesn't seem to be trying to replace GR.
Once again there is no theory out there, real or proposed, that can possibly work if it doesn't include both GR and QM. After all, both GR and QM fix problems with Newtonian Dynamics (ND). Neither of them completely replaced ND in areas where ND was good enough. For example classical thermodynamics is quite adequate for a large percentage of engineering needs. QM probably could give better results, but not enough better that engineers are ready to give up the relative simplicity of classical thermodynamics. So whatever theory we wind up with it won't throw GR and QM in the trash heap. They will both wind up being subsets of the theory, which can, at least for the time being, be called Quantum Gravity.
Here we go again. The final theory WILL include both GR and QM in its final form. This is necessary because they have both been tested in great detail. There is NO tenable theory out there which will completely displace one or both of them
So a question. Do you feel that there is a chance that whatever the final theory is it will completely displace GR or QM, or both of them?
Bill Gill
