Is Gravity the Only Way to Bend Space-Time?

Abstract

The purpose of this article is to raise the question, "Is gravity the only way to bend the space-time, or can there be other ways to bend space-time?" The answer to this question can be either, A) a description of the mechanism of non-gravitational curvature of space-time, or B) proof that gravity is the only method to bend space-time and there is no other way. Since modern science can prove neither A nor B, the question raised in this article remains open. This article also discusses and rejects the objection that non-gravitational curvature of space-time would be observed as a kind of "additional" gravity, what is not taking place. The scale and strength of non-gravitational curvature is important. Also, the non-gravitational curvature of space-time does not necessarily have the U-shaped form, which we observe as a gravity. The explanation of gravity by the curvature of space-time generated by the presence of massenergy was put forward by Einstein in his works Die Feldgleichungen der Gravitation [1] and Die Grundlage der allgemeinen Relativitätstheorie [2], published in 1915 and 1916 respectively. The Theory of General Relativity has been brilliantly confirmed in many fields of physics and is used in astronomy, engineering, astronautics, atomic physics, etc. Thus, General Relativity and subsequent experiments: A. created a precedent that space-time can be bent; B. proposed the presence of mass-energy as the mechanism of this curvature; C. confirmed this model in many experiments in various fields of science and technology. Thus, a precedent has been created. It is possible to bend space-time and there is at least one mechanism that can do this. However (as far as the author knows) no one has ever proved that gravity is the only way to bend space-time. Therefore, may there be some other mechanism of space-time curvature? This question is unusual, but in the absence of evidence that gravity is the only way to bend space-time, it is a legitimate one. The author's goal, of course, is not to propose another way to bend space time. Perhaps it simply does not exist. This article is merely a statement of the problem, which in all probability has only two solutions: A. a description of the mechanism of non-gravitational curvature of space-time, or B. proof that gravity is the only method to bend space-time and there is no other way.