G'day Steve. When I was 10 or 12 years old, I pondered the origin of the universe and why anything exists at all. This troubled me to the point of mental anguish, so I consciously chose to drop it in favour of all the other wonderful things around me. I have been tempted many times to ponder these thing, but I have concluded that that these questions are unknowable. I find sufficient pleasure in exploring mysticism and paradox. I also believe that all knowledge is provisional, so the challenge is to try and defeat the provisional nature of knowledge or at least increase the quality. Never leave facts unchallenged in resolving paradox's. I think all paradox's should be resolved before moving on or advancing new law. Quantum gravity is a red herring, gravity is mysterious enough without adding ultra mysterious quantum mechanics to it. The coulomb and magnetic force's are just as mysterious as gravity. The strong and weak forces are even more mysterious. There are too many particles in my opinion.
Dark and black are code for total ignorance and probably don't exist. Dark matter may be: protons, electrons, H1, H2, carbon dust, and iron dust. These materials are virtually invisible when cold. These particles probably emit in the low infrared and RF region, and are indistinguishable from the cosmic microwave background (CMBR). It's unlikely that the observed microwave background originated from the big bang, but is down converted starlight as Grote Reber suggested.
Dark energy could be the result of incorrect assumptions in the measurement of light emitted from "standard candles". Dust is likely obscuring and attenuating the light and destroying the calibration. Even if you assume the big bang is valid the optical radiation at source, is unlikely to make the 13 billion year journey unscathed or unattenuated, after passing thru all that dust and particles. Maxwell says the attenuation is significant if the particle density approaches one particle per cubic metre. Particle size obviously is a factor but coulomb charge and ionisation level increase effective capture area.
Low frequency radio waves are totally reflected by sections of the very low density ionosphere. QM's would have great difficulty accounting for this phenomenon.
To be continued?
Regards