i've seen the double slit experiment and the delayed choice . my mind rejected the conclusion, but the experiment setting and configuration of delayed choice is rational and holds water so i accepted the experiment outcome even if it means the world isn't real. i had to give that intro that sounds irrelevant to the topic just to show that i'm open minded. Now, for the relativity and time dilation , my argument starts with the light clock, it's designed and calibrated to "count" time in certain conditions same as those large old classic pendulum clocks that are calibrated in certain conditions and they measure time faster in winter as the pendulum rod shrinks or slower during high atmospheric pressure and humidity but we dont age faster in winter nor slower in humid thick air, so why should we say so if a clock that uses different theory gave altered reading??