The vacuum fluid

Liquid Spacetime - The Fluid Flow Of General Relativity?

If we follow up the analogy with fluids it doesn't make sense to expect these types of changes only" explains Liberati. "If spacetime is a kind of fluid, then we must also take into account its viscosity and other dissipative effects, which had never been considered in detail."
Liberati and Maccione cataloged these effects and showed that viscosity tends to rapidly dissipate photons and other particles along their path, "And yet we can see photons travelling from astrophysical objects located millions of light years away!" says Liberati. "If spacetime is a fluid, then according to our calculations it must necessarily be a superfluid. This means that its viscosity value is extremely low, close to zero.
"We also predicted other weaker dissipative effects, which we might be able to see with future astrophysical observations. Should this happen, we would have a strong clue to support the emergent models of spacetime. With modern astrophysics technology the time has come to bring quantum gravity from a merely speculative view point to a more phenomenological one. One cannot imagine a more exciting time to be working on gravity".

They are not alone, Einstein said the vacuum had inherent energy. So, how much of a fluid is the vacuum? Well, how about (3/2)^-108 of the fluidity of the proton, as near as I can tell.  That tiny number seems to agree with both Max Plank and Albert when they postulated the the energy of the vacuum.  What effect would that cause when viewing light from 60 million light years? Energy spread of light, and red shift, as a matter of fact. 
The bigger problem is whether the energy of the vacuum is dissipating. And if not, what replenishes it? And if so, where would it go?