Originally Posted by parejkoj

Again I ask you: can you provide me with any tired light model that does predict time dilation? Saying "maybe one will come along that does" is irrelevant. Maybe a version of "turtles all the way down" will predict our motion around the Milkyway, but until such a model is put forward there is no reason to think that it will appear, since none of the "turtle" class of models has been even remotely successful so far. The same for tired light.

And the paper explicitly states that they were comparing it with Zwicky's model. So my question at the top of this post (and my summary of the state of things in my previous post) still stands.