Peter,
I think, we are getting to the 'hierarchy' limit on this thread (close to 50 posts). I will respond briefly and urge you to read, Newton's Views on Space, Time, and Motion (Stanford Encyclopedia of Philosophy) after reading this response. We may have to open another thread or shift the discussion to a more appropriate blog. On this Why Quantum topic, you have not confirmed what I asked you on orbital stability. That is, whether since you propose momentum and inertia as what opposes gravity and prevents orbital collapse, whether it is the electron's momentum and inertia that also prevents atomic collapse? Anyway, my response...
"You call the something Plasma, I call it Dark Matter". Then you at last entirely agree with the DFM which derives 'dark matter' as pure plasma (which we're very familiar with as pure unbound electron/positron pairs and protons)
What I agree on is that there is an invisible form of matter, discernible only by its gravitational effects. I am not committing that it is made up of electrons, positrons or protons. I suppose electrical experiments would have long confirmed if that were so.
The DFM's is that light propagates in a quantized medium just like sound (but normally very diffuse) and is constantly 'localised' to that medium's rest frame datum for c.
We are in partial agreement here. With the addition that not only 'dark matter' or 'plasma' is quantized but even space, itself devoid of all matter is quantized (i.e. discrete) and its unit is the geometric point of the Pythagoreans, Proclus, Aristotle, etc, not that of Plato (as I discussed in my 2013 essay). What is quantized can vibrate. Space therefore can vibrate and transmit light (and maybe also gravitational waves) at a speed c, slightly higher than our local, earth-measured c.
Big picture?: Beyond Galileo; The sun goes round the galaxy, which goes round the local group, which orbits the cluster, which.. etc etc...
In a rare moment of inspiration and brilliance, Newton is quoted in the Stanford entry referred to above as implying that, "..., one can directly observe the allegedly absolute motion of a body if both it and its immediate surroundings are visible. In contrast, because the parts of absolute space are not directly accessible to the senses, it is very difficult, ...to ascertain the true motion of individual bodies and to discriminate them in practice from the apparent motions. "Nevertheless," he remarks in a rare moment of wit, "the situation is not entirely desperate." Evidence is available in part from apparent motions, which are the differences of true motions, and in part from the forces, which are the causes and effects of true motions."
Now that the immediate surroundings have somehow become visible, thanks to CMBR, why do you still resist Newton on this?
When you read Newton's views, particularly section 5, you will see a bigger picture. Therefore, don't stop at cluster. Continue further up the hierarchical ladder. You will eventually get to a structure which does not go round anything. That is the visible marker for Absolute Space which Newton unfortunately did not live to behold and confront his opponents of the Leibniz-Mach, etc school with. Do you belong to that school of thought or are you forming your own school?
Regards,
Akinbo
You may also want to read the related Stanford entry on Absolute and Relational Theories of Space and Motion.