If one is willing to consider the current cosmic microwave back ground temperature as a quantum gravitational effect of the evolving primordial cosmic black hole general theory of relativity and quantum mechanics can be combined into a ‘scale independent’ true unified model of quantum gravity. It can be suggested that, universe may or may not be a black hole, Hubble volume can be considered as a growing and light speed rotating black hole at 99% confidence level. With this proposal galactic rotational curves, cosmic dynamic stability can be understood. By considering the ‘Stoney mass’ as the initial mass of the baby Hubble volume, past and current physical and thermal parameters of the cosmic black hole can be understood. Isotropy and anisotropy of CMB can be understood. If rate of decrease in current ‘Hubble’s constant is very small and is beyond the scope of current experimental verification, then the two possible states are: a) current ‘Hubble’s constant is decreasing at a very slow rate and current universe is expanding at a very slow rate and b) at present there is no ‘observable’ cosmic expansion or acceleration. To understand the ground reality of current cosmic rate of expansion, sensitivity and accuracy of current methods of estimating the magnitudes of current CMBR temperature and current Hubble constant must be improved and alternative methods must be developed. If it is true that galaxy constitutes so many stars, each star constitutes so many hydrogen atoms and light is coming from the excited electron of galactic hydrogen atom, then considering redshift as an index of 'whole galaxy' receding may not be reasonable. During cosmic evolution, at any time in the past , in hydrogen atom emitted photon energy was always inversely proportional to the CMBR temperature. Thus past light emitted from older galaxy’s excited hydrogen atom will show redshift with reference to the current laboratory data. As cosmic time passes, in future, the absolute rate of cosmic expansion can be understood by observing the rate of increase in the magnitude of photon energy emitted from laboratory hydrogen atom. Past cosmic high temperature may be the root cause of observed super novae dimming. Like ILLUSTRIS, with advanced mathematics and computer simulation technology this model can be virtually developed for further study and analysis.