An article appearing in Forbes / Science on Feb 24, 2016, physicist Chad Orzel tries to explain “Why Is Relativity True?”. After reading the entire article, Orzel gives the only explanation that physicists can… “It just is, the same as any other theory in science.” I must say I was looking for something more meaty than that. Yet my disappointment was not unexpected, this answer pierces through to the essence of why physicists have not figured out the theory of everything.
The fact is (determined through countless experimental observations) that the mathematics of Relativity will always be experimentally confirmed; however, the model of the universe portrayed by the mathematics of relativity is not correct. This is a very strong statement which does not seem to make sense. How can all the math be right yet the model it is representing be wrong? It is possible because no one understands why the postulates used to derive the mathematics of relativity are true. So the part of the model that tells us why light is a constant in all reference frames is missing!
All theories are based on postulates that are expressed in mathematical form. In the case of relativity, the postulate that light always travels at the speed of light in all reference frames is not only assumed to be true but has been experimentally shown to be true. Einstein suspected this fact about light’s speed after Maxwell derived the speed of light from his equations. Maxwell’s equations are also experimentally true and these equations have no regard to the reference frames in which its verifying experiments are carried out in.
So why is relativity true? Because its postulate is experimentally true. Although this seems to be enough to satisfy physics academia, it is not enough for a person looking to solve the theory of everything. Using the mathematics of GR as a starting point to solve the theory of everything will always be fruitless.
This article exposes a philosophical problem within academic physics… Physicists have lost their philosophical roots. A philosopher would never be satisfied with the answer to a question, because “it just is”. And herein lies the reason why physicists are floundering in their own theoretically created mathematical quagmire.