For over a century, Einstein's Theory of Relativity has been the cornerstone of our understanding of gravity, describing how massive objects warp spacetime and influence the motion of other bodies. However, while Relativity has been remarkably successful in explaining large-scale phenomena such as planetary motion and black holes, it does not integrate with the Standard Model of particle physics, which describes three of the four fundamental forces: electromagnetism, the weak nuclear force, and the strong nuclear force. Gravity remains the outlier, resisting unification with quantum mechanics. In response, physicists have long sought a 'Theory of Everything'—a single, coherent framework that would reconcile gravity with the quantum world. The latest efforts in this direction involve new mathematical models and hypotheses that attempt to bridge the gap between general relativity and quantum field theory. These new approaches may involve concepts such as string theory, loop quantum gravity, or other novel ideas that propose a deeper structure to spacetime and the forces that govern it. The development of a successful Theory of Everything would not only advance fundamental physics but could also have far-reaching implications for technology and our understanding of the universe. While these theories are still highly theoretical and subject to ongoing research and debate, they represent a significant step toward resolving one of the most profound challenges in modern science.