No, Einstein's special theory of relativity is not considered egregious physics. In fact, it is one of the most successful and well-established theories in physics. Special relativity, developed by Albert Einstein in 1905, provides a framework for understanding the behavior of objects moving at speeds close to the speed of light.
Special relativity introduces concepts such as time dilation, length contraction, and the relativity of simultaneity. It demonstrates that the laws of physics are the same for all observers in inertial reference frames and that the speed of light is constant in all inertial frames. These concepts have been extensively tested and verified through numerous experiments and observations, including particle accelerators, high-speed particle collisions, and measurements of cosmic rays.
Special relativity has had far-reaching implications for various areas of physics, including particle physics, cosmology, and astrophysics. It forms the foundation for Einstein's more comprehensive theory of general relativity, which describes gravity as the curvature of spacetime.
While our understanding of physics continues to evolve, and there may be aspects of the universe that remain unexplained or unresolved, special relativity is a well-established and highly successful theory that has withstood the test of time and experimentation. It has contributed significantly to our understanding of the fundamental nature of space, time, and the behavior of matter and energy.