No, the Big Bang theory is not considered the "Theory of Everything." The Big Bang theory is a well-supported scientific explanation for the origin and evolution of the universe. It describes the expansion of space and the beginning of the universe as we know it, approximately 13.8 billion years ago.
On the other hand, the "Theory of Everything" (ToE) is a hypothetical concept in physics that seeks to unify all fundamental forces and particles into a single comprehensive framework. It aims to explain the fundamental nature of the universe, including the behavior of particles and the forces that govern them, such as gravity, electromagnetism, the strong nuclear force, and the weak nuclear force.
While the Big Bang theory provides an explanation for the early universe, it does not encompass all aspects of physics or answer all fundamental questions about the nature of reality. The development of a ToE remains an ongoing area of research and a major goal in theoretical physics.