An evolutionary scenario of processes, especially of the thermodynamic processes, in a perpetually mass-generating Planckian model universe has been studied. This is a Milne-type flat-space, R = ct, model with steady radial mass flow as recently described by us. In this ‘Broadcasting TV’ model universe the rest-mass particles are moving practically with light speed and the neutrinos and photons, both in thermal equilibrium and decoupled states, are moving in (almost) perpendicular directions along the light cones as the frozen-in particles. Therewith the density of radiation has the same dilutional dependence as for the radially squared lowering density of rest-mass particles. In such model universe the horizon problem is avoided automatically, whereas the light-cone photons are moving relative to atomic matter along the logarithmic Archimedes spiral around the mass-generating Planckian source, covering during evolution about 22 cycles. Crucially, the cosmic ‘dark ages’ start at 33.2 times younger age and about 103 times greater densities of matter, leading to much earlier formation of stars and galaxies than in the traditional LCDM cosmology. In the Planckian universe the cosmological principle holds for every epoch, thus removing the anthropocentric principle. The modified critical density in the model is ρ = 8.6·10–31g·cm–3. The needed dark matter contribution ρv = 3·10–31g· cm–3 can be provided by neutrinos if their rest energy is 0:16 eV. These correspond to degenerated cooled neutrinos at velocities of the order vF = 104 km/s.
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