I recently read a good article on USAToday and posted my usual comments.
What hit me was that semantically people may disregard what I am saying due to the fact hard core folks now assume invariant mass to be the norm. So from now on when you see or hear me state Relativistic Mass it only relates to solving for c in e=mc2. So no matter how you solve for it I am stating that you are solving for an acceleration not a velocity. And this really makes sense when two people who I debated used their math for my two Parallel Particle Accelerators example and came up with the objects acceleration not its relative velocity.
To state this more simply, If you were to build two large Particle Accelerators(PA1 and PA2) in parallel. PA1 accelerates a particle A to a constant velocity of 99%c in one direction while PA2 accelerates a particle B to a constant velocity of 99%c in the opposite direction. If they passed each other midway after one time unit how far apart would A be from B? After 2 time units how far apart would they be? My math says that for each time unit after they pass the distance between them is 2*99% the distance light travels in one time unit. So B is traveling nearly 2 times the distance light can travel in one time unit away from A. So we either figure out away that LTs deal just with acceleration or we throw them out completely since using them plus relativistic mass to state nothing can have a velocity greater than the speed of light is wrong. So my first goal is to get rid of the speed limit. After that I do not much care if someone thinks anything in four-dimensional space can be at rest. But using LT’s to express a relative acceleration makes sense since one object would be accelerating not just moving a constant velocity.
Regardless, it is a fundamental assumption of special relativity that light travels at the exact same speed in all inertial reference frames (this is what leads to Lorentz contraction and time dilation). The reason why we believe this assumption is because there has never been an experiment done that contradicts the results of special relativity. It’s as simple as that. Either come up with an experiment (not fuzzy math that ignores repeated suggestions that you’re failing to use Lorentz transformations) that contradicts special relativity or you simply will never be taken seriously.