Dear Loenard,
Thank you very much for your comment. Actually if you would like to understand how is my theory is rejecting the existence of Tachyons, You must imagine first how is my theory solved the twin paradox in special relativity. and then how my theory is interpreted the faster than light.
For example, Suppose Sara and Sally, Sara is existed on the earth surface, and Sally traveled by her spacecraft with speed 0.87c. Now if both of Sally and Sara are twins of old 20 before Sally left the earth. Now when Sally returned to earth after she computed 2 years by her spacecraft clock during the motion, her old would be 22 years, and when she stopped her spacecraft on the earth she would find Sara's old 24 not 22, as she was thinking. Now if we apply the same example in the Lab, as in my theory equivalence principle, for example, if we have a tube of negative vacuum energy. The negativity of the vacuum energy of the tube is equivalent that Sally who existed in the lab is moving with speed 0.87c. Now if Sara is existed inside the tube, and after Sally in the lab computed 2 years according to her lab clock, in this case the clock of Sara for herself inside the tube is faster than the clock of the lab, and thus the time passed inside the tube is 4 years not 2 years as was thinking by Sally. After that, when Sara exited the tube to the lab, her old would be 24, not 22 as Sally was thinking and seeing Sara. As you see from this example, according to my MSRT, there is no Tachyons thay led Sara to be older than Sally. According to my MSRT, because of the negativity of the vacuum energy comparing to Sally lab, time inside the tube was moving faster. but the difference between my theory and SRT, is how Sally seeing the motion of the clocks inside the tube, according to my theory, Sally will see the motion of the clocks inside the tube same as the motion of her lab clock. Thus before Sara exited the tube Sally was seeing Sara of old 22 same as her old, but when Sara exited the tube, Sally found Sara of old 24. Sally was not seeing how was Sara at time greater than 22 less than 24.