It is certainly a hypothesis, which adds additional conditions to the E.F.E. The discrepancies with respect to the Standard Model of Relativity are extremely small considering G.F. such as the earth´s one. Why this hypothesis could be interesting? Because it takes a completely different approach to the gravitational phenomenon, and nonetheless the results obtained are very similar for physical systems such as the solar system, but important discrepancies arise, for example, when considering galaxies that have a black hole in the center, or when considering the rate of expansion of the Universe. The hypothesis proposes that gravitational waves would produce additional effects that are not taken into account by the S.M.