I would have thought that this would have been tested before but this paper suggests that it is a new theory. arXiv:1709.02481 [pdf, other] A possible explanation for dark matter and dark energy consistent with the Standard Model of particle physics and General Relativity A. Deur Comments: 6 pages, 2 figures Subjects: Cosmology and Nongalactic Astrophysics (astro-ph.CO) Numerical calculations have shown that the increase of binding energy in massive systems due to gravity's self-interaction can account for galaxy and cluster dynamics without dark matter. Such approach is consistent with General Relativity and the Standard Model of particle physics. The increased binding implies an effective weakening of gravity outside the bound system. In this article, this suppression is modeled in the Universe's evolution equations and its consequence for dark energy is explored. Observations are well reproduced without need for dark energy. The cosmic coincidence appears naturally and the problem of having a de Sitter Universe as the final state of the Universe is eliminated.