This research paper presents a novel perspective on gravity and spacetime curvature through the Theory of Multi-Mediums (TMMC). While Einstein considered that mass and energy determine the curvature of spacetime, this theory proposes that the observed motion of objects results from a continuous interaction between multiple mediums, which reorganize themselves to reach the lowest possible tension state, without requiring the traditional notion of gravity
Mabrouk Brahimi (Sun,) studied this question.