Jason,
You're exactly correct. You're unable to untangle time from energy, but this has consequences for the geometry. Remember the RHS of Einstein's EQ is the stress-energy tensor. If it changes the geometry must follow, so GR doesn't handle large changes in energy and thus dynamically changing spacetime very well. The only two cases that I'm aware of are gravity waves and the Lense-Thiring effect, but our universe is a very dynamically changing place, especially early in cosmic time and near strongly gravitating objects, but also wrt its very expansion throughout its entire life cycle. This is why the mainstream community has difficulty with explaining the galactic jets that Peter uses as a example. It's not that the jets are breaking the light barrier, but the spacetime that they are embedded in is. Dynamically expanding spacetime isn't restricted to light speed. It just so happens that these jets represent a highly non-uniform expansion of spacetime that the relativity experts aren't equipped to deal with.
Quite amazingly, I had one of the authors contact me yesterday on my essay forum. He seemed thrilled to find my essay and wanted for me to read his essay and a paper on his web page. His essay was fairly unorganized and nearly but not quite incomprehensible, but it included a part re. the growth of galaxies from BHs that seemed very similar to the mechanism in my essay. This was just enough for me to check out his internet paper (something I normally would spend time with). After reading his internet paper, I understood why his essay didn't make much sense. His internet paper has a theory of QG that contains 68 pages worth of material. No wonder his essay was in disarray, he was trying to squeeze so much in that none of it made much sense.
Believe or not, I actually read all 68 pgs. and think he may be onto something. Of course, it's hard to tell with just one reading and it did progressively get more involved. He described the QG field as an exponentially varying acceleration field that is intimately connected to the logarithmic or growth spiral, which is what I used to renormalize spacetime in my model. I had always suspected that the LS would have some kind of quantum effects, you can imagine my surprise when someone turned up with a complete theory built around them. Needless to say, I'm very interested in the details of his theory. It just seems too much of a coincidence that we arrived at similar conclusions re. galactic evolution; he from QG concepts, and me from contemplation of the nature of time and GR.
I plan to study his theory in more detail to see if I can substantiate it on my own and suggested that he tighten it up in order to submit it to a peer reviewed journal which seems like he is going to do. It's a fairly accessible paper until he starts talking about the tensors with 48 and 64 components, although it is quite long. You can access his paper here if you want to take a look.
Dan