What the special theory of relativity can lead us to conclude

This article analyzes the relationship between the mathematical components that constitute the fundamental equation set in Einstein’s seminal 1905 paper, “On the Electrodynamics of Moving Bodies.” By conducting a straightforward comparison of these components, we unveil the inescapable emergence of the equation x ′ c − v = x ′ c + v . However, it becomes evident that this equation lacks empirical validation for any nonzero value of v . It is widely acknowledged that the Special Theory of Relativity (STR) surpasses Newtonian theory in the realm of kinematics, particularly at relativistic speeds. The cornerstone belief supporting the existence of STR, known as the second postulate, has been widely recognized. Therefore, the equation presented above naturally encourages a reexamination of the second postulate’s true nature. Such an investigation inevitably leads to the conclusion that the second postulate lacks the substantiation necessary to be considered a valid physical statement. Indeed, it also becomes evident in this investigation that one of the two fundamental equations requires more rigorous refinement to accurately depict the underlying physical phenomena. Nevertheless, the question persists: Is there a pathway to refine this equation effectively?