I follow your work precisely for that reason, yes, everything points to the fact that space-time (although you already know that I defend space-zoom) is a fluid, as the relationship between the energy-stress tensor and the pressure suggests. I think you're on a very good road

Wow, this is a great question, one which requires the use of such profound conceptual thinking about the fundamental reality of the universe.

I would like to give my opinion divided in two points, or two approaches:

1. The Quantum approach: (to called quantum is just a way to name it, since the level of scale of the second approach goes deeper in scale and size of the nature of the space time).

The quantum approach I believe is; to think in the Space-Time "tissue" as discrete. As quantumly tiny this could be, but discrete in the end.

It has been established as the minimum quantum of size (space) and time; the planck length and the planck time, respectively. So maybe the final nature of the space time (these physical entity where every one and everything is place at) as a frame, is divided in tiny chunks small as a planck lenght and planck time, but no smaller. (I guess this now has become to be seen as the classical view).

We would take this approach as the Spacetime entity to be discrete in the end

And it make sense, (here is where philosophy kicks in; what we can still be considering space-time as physics (specially GR, taught us? does it make sens to think about space with separations smaller than a planck lenght ?

So I think this first approach is possible, and it doesn't bugger me at all, and it is confortable, physicist like to stay in this approach.

But, what if we go further, here is where we change our approach of discreteness to continuity, this entity permeating all the universe, here is where QFT enters.

so what if space (or spacetime) is an energy field too? One we can quantize too, as the Higgs field, or the EM field. You guys know that QFT is the ultimately phisical theory that describes better the nature of reality in our universe.

If spacetime is a quantum energy field, then there were not Planck lenghts or planck times as to be the smaller quanta of space and time, but this entity (the spacetime itselft) would be an energy field permeting all the universe, as a field, and waves, as ripples in the ocean, ones which does n't have apparently discreteness ... maybe in the future we will think of spacetime as we think now about Dark Energy , maybe we will start finding the spacetime "field" has some properties of Dark Energy or the Higgs Field.

I like this approach better, I think it drives us to a Unified field Theory, but lets see and wait the steps of science and physics

:)