Perhaps, universe is homogeneous because light can go faster than light speed {varying-speed-of-light theory} {varying speed of light} (VSL). Fast light can bring all universe regions into contact, making one closed system (with nothing outside, before, or after), and so make thermal equilibrium, so there was no need for cosmic inflation.
Physical Sciences>Astronomy>Universe>Cosmology>Radiation
5-Astronomy-Universe-Cosmology-Radiation
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Date Modified: 2022.0224