John
You: is that light is the medium and waves are the features/information content of this expanding medium.
It is hard for me to figure out how can light be a medium instead of a wave. From the perspective of wave mechanics, light is a feature of the medium. The medium is the thing that exist and the wave is a feature of the medium. How can the wave be the medium and the medium be the wave? I do not get this and I do not see why to should we interchange the roles. If you have a reference in which this idea is more elaborated I would appreciate it. In any case as I understand you bring expansion as main ingredient to explain the frequency shift. Whether space or light expands I see both equivalent, because in both cases the mechanism is expansion. I clearly understand that expansion is one possible explanation of the red shift. However, in my previous posts I argue in favor of a model where there is no expansion; light loses energy simply because the aether, as any other medium, is dissipative/dispersive and light (seen as wave) is absorbed as the distance grows, just as a water wave vanishes in a lake as it propagates. My point is: why should we resort to expansion if it is not necessary to explain the observations?
Israel