Mohammed,
I consider strict philosophy at the roots of science, and I question your lazy statement:"This understanding [of space and time] made many technological applications possible, such as particle accelerators, nuclear power plants, and the GPS".
Even David Bohm admitted in his textbook on Special Relativity that achievements attributed to SR can also be attributed to other interpretations.
I maintain what I wrote in my essay: "Several insights that were incorporated into Einstein's theory of relativity and are now ascribed to it did nonetheless prove realistic and useful in practice. In particular, there is no reason to doubt that the speed of light [in vacuum] is constant and constitutes an upper limit for the propagation of energy." Einstein himself was forced to admit that his imperfect understanding of "past, present and future" worries him seriously, cf. my earlier essays. The countless experiments you mentioned confirm facts that are not necessarily related to the claimed relativity of time. What about GPS, those who are defending Einstein are merely claiming that the Sagnac effect does not contradict to SR. It does not confirm it.
I humbly don't feel in position and also not obliged to deal with all arguments that were risen to defend an ideology. I merely found out that Einstein's reasoning was neither his own nor flawless but led to unresolved and perhaps unresolvable paradoxes. That's why I am asking (in vain) for a trustworthy experiment that confirms more than the incorporated contributions of others.
So far, I tend to agree with Luis von Essen on that SR is lacking any own experimental basis. May we call it therefore a mere philosophical fabrication or is it really a discovery? Anyway, I see this allegedly settled question unsettled as long as belonging paradoxes cannot be denied. The future is open. Discoveries and inventions may steer it.
Eckard