Gary
Thanks for your appreciation.
As a member of UK sceptics I fully understand your questions;
1. Time; You have to carefully think through the implications of CSL. They are massive in foundational terms, the constant around which all else is built. E = fLambda only because c = flambda. There is no distance without CSL, so no 'known' solar system or universe. There may be tiny adjustments with frequency, but it's more essential to nature than we realise.
2. Space; I agree, and have shown it's demise was unnecessary. But although 'continuum' is now the fashionable word it only does this as a 'dis-continuum', more of a dynamic 'block' universe - each in relative motion. Einstein knew and said it was, he just didn't have the plasmasphere evidence we do for what forms the boundaries.
3. Gravity. The logical conclusions of the above in the DFM derives an unbelievably simple solution to the equivalence of gravitational and inertial mass that gave us GR. The faster a body or particle moves through the condensate the more mass condenses. That's it. no more, no less. OK I lied, it's also obviously proportional to size, and frequency (synchrotronic) is directly proportional to the change in f needed to preserve c and E. Look at heavenly bodies; the Earths plasmasphere reduces dramatically in the evening, when the 'solar wind' stops bashing into it! And look at what happens around particles in accelerators, and also in the pipe at the accelerating magnets. (the plasma is made of photo- or 'virtual' electrons, i.e.ions.
And what do em waves do when they go through a plasma cloud? diffract, to implement the effects of curved space time, confirming the quantum mechanism for GR. Of course we'll still need something like your gradient in the (dis)continuum to complete the job. This is not new physics its just the best logical fit to the evidence.
Where did we think matter condensed from anyway!? Now we just need a good word for it. What's the Sanscrit for discontinuum, or 'field'?
It seems the real problem is not that it's too simple, but that we have been.
Peter