Curt,
"Speed cannot be determined without an outside reference. The speed of the "moving reference frame" is measured in the "stationary reference frame." i.e, how far the origin of it has moved from one point to another, in the opposite reference frame. "Moving" and "Stationary" are interchangeable. If one reference frame is "moving" to the left at 1/2c, the opposite frame is moving to the right at 1/2 c. If there were a contraction, who would know? Each reference frame would be contracted relative the other."
Sharing my viewpoint on relativity type effects:
Einstein's special theory of relativity, in my opinion, was an example of applying a single truth, the local nature of the constant c as represented by Maxwell's speed of light equation, and misrepresenting it as having a remote nature. By mistakenly replacing the local nature with a remote nature, the physical basis for the speed of light was removed. The physical properties at any point at which the light is located is analogous to a stationary point for a fulcrum. Without that stationary point the fulcrum is not a fulcrum.
With regard to the assignment by Einstein of a remote nature for the speed of light the local physical cause for the speed of light, was eliminated causing the reason for the speed of light to become relative to the observer. It lost its 'stationary point'. I see irony in the application of special relativity properties as the basis for interpreting general relativity type effects. What I see having occurred is that that attempt to apply special relativity properties to gravity actually reinroduced the 'stationary point'. The cause for relativity type effects was returned to being a local physical condition.
Still there was an error that was not corrected by the introduction of general relativity. That error was carried over from special relativity theory. The error was that the speed of light has a remote nature. The velocity of light is given by v=(d/t). As d changes so should v change. However, if v is declared to be c even for remote observations, then as d varies so must t vary. This erroneous substitution of a variable nature for time was carried over uncorrected into general relativity theory.
Obviously the speed of light is determined by local conditions as is predicted/confirmed by Maxwell's equation. Maxwell's v=(1/(mu*epsilon)^1/2) is incompatible with the relativistic conclusion that the speed of light is constant while time varies. For stable conditions, both mu and epsilon, magnetic permeability and electric permittivity, change with position and not with time. The speed of light changes with mu and epsilon. Therefore, the speed of light changes with position. The return of the cause of the speed of light to correlate with position re-introduces the 'stationary point' in the form of the local medium.
My work suggests that: If I am an isolated observer in a massless gravity free environment, and, I hypothetically see a light signal sent from a second observer who is closing in on my position there will be no relativity type effects for either of us. If I am an observer on the surface of the Earth and an object whizzes by me horizontally to the Earth, I will observe relativity type effects for that object. I will not undergo any such effects myself.
The relativity type effects that I will observe are that the object length physically shortens and that the local speed of light immediate to and within the object will have slowed. If there was an observer traveling with the object, that observer would measure the surrounding conditions, including myself, as expanding. There would be no such expansion. The object, the observer, and the observer's measuring rod would have shortened.
James