The Contraction of the Universe with the Speed of Light

The theory of relativity establishes the speed of light in the vacuum as the highest possible speed and shows that the speed of light towards different observers is the same. The speed of light is set as an absolute constant. The paradox of constancy of light speed created a great problem for physics, a problem that Albert Einstein considered to have solved it suggesting that physical theories should not depend on the observer's state of motion but also that the speed of light must remain a constant and the rest of the physics has to change to align to this. Why is this speed the only absolute constant in physics? The question is fundamental, considering that modern physics and all cosmological theories are based on this constant. While the velocity of any body or particle except the photon is relative, why is the propagation velocity of the wave that supports the photon constant? But what if everything is observed and demonstrated is not real? What if this speed considered to be a constant and a limit in the universe is not the speed of light but the speed of contraction of the infinite universe itself? What if the radiation and the force fields are oscillations of the molecules, atoms , ions and elementary particles that the contraction of the universe converts into waves? My hypothesis answers these questions : the universe constricts at the speed of light. My hypothesis provides the sort of firm advance in general understanding of universe.