The Problem of the Arbitrary Values of v and c in Special Relativity Theory.

Special Relativity (SR) theory posits all motion is relative motion.
Light photons move, therefore light is relative motion with a relative velocity.
Motion relative to an observer is only known relative to the observer.
Light motion of velocity c, is only known to the observer.
The observer's motion relative to light is the relative velocity v.
The observer's motion and light motion are only known relative to each other.
What is only known relative to another is not known from itself.
The observer's velocity is only known relative to light at c and is not known from itself.
Light velocity is only known relative to the observer is not known from itself.
As v and c are unknown in themselves, any relative velocity between the two velocities can be accounted for through any addition and subtraction of relative velocities.
Any such values of v and c are then never known in themselves but can be any value assigned to match the relative velocities of v and c.
Therefore the velocities of v and c are not knowable in themselves.
Therefore the assignment of numerical values to v and c are arbitrary.
Therefore the equations of SR that contain v or c are arbitrary equations.
What is arbitrary is not descriptive of the real.
For the real is natural, absolute and thereby knowable in itself, and not unknowable as related only to another as required of SR theory.
Therefore, due to the arbitrary values of v and c in the transform equations, SR theory is not realistic, and thereby false.

Discussion - SR postulates light is always at c in a vacuum, but the postulate must be linked back to the notion of relative reference frames. As c is the same value for all reference frames in a vacuum, c must be referred back to only reference frames which move at v relative to c. The assumption of relative motion entails v and c are also relative and thereby unknowable in themselves. The assignment of any numerical value to v or c must be arbitrary.

The SR transform equations that involve the use of c and v have an infinite number of solutions for any problems, for any number can be assigned to v and then have a corresponding value of c assigned to light to ensure the relative values of c and v as known through the observed c+-v. The infinite number of possible outcomes to the transform equations infers SR theory is impractical and unrealistic.