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<article><title>The Ultimate Sophistication of Special Theory of Relativity</title><author>Hamdoon A. Khan</author><affiliation>Independent researcher, Sri Lanka</affiliation><email>dr.hamdhoonkhan@gmail.com</email><journal>International Journal of Fundamental Physical Sciences (IJFPS)</journal><journal_url>https://www.fundamentaljournals.org/index.php/ijfps</journal_url><volume>11</volume><issue>3</issue><pages>43-49</pages><issn>2231-8186</issn><doi>10.14331/ijfps.2021.330148</doi><doi_url>https://doi.org/10.14331/ijfps.2021.330148</doi_url><license>https://creativecommons.org/licenses/by-nc/4.0/</license><abstract>With the consideration of the light which carries the photon particles, the Lorentz transformation was constructed with an impressive mathematical approach. But the generalization of that equation for all the velocities of the universe is direct enforcement on other things not to travel faster than light. It has created serious issues in every scientific research that was done in the last century based on the special theory of relativity. This paper replaces the velocity of light with some other velocities and shows us the possible consequences and highlights the issues of special relativity. Through various paradoxes and reasoning, it is argued that time travel and relativistic phenomena are merely philosophical or optical illusions and not grounded in physical reality.</abstract><keywords><keyword>Special theory of relativity</keyword><keyword>Paradoxes</keyword><keyword>Time Travel</keyword><keyword>Relativistic mass</keyword><keyword>Time Dilation</keyword><keyword>Length contraction</keyword></keywords></article>