Explaining the Universe with gravitation dependent quantum vacuum

Recent experimental hints for the equivalence principle violation point to an effective vacuum polarization in gravitational fields.This will change vacuum properties altering magnitudes of the physical constants. Here I discuss how a variable Planck constant and light speed, modified by gravity, can explain the main cosmological observations without invoking the space expansion.The obtained results are suggesting a simplified Universe without the Big-Bang, Dark Energy or Dark Matter, pointing to gravitationally excited quantum vacuum as the source of the Cosmic Microwave Background.