A bold claim that the universe’s accelerating expansion was an illusion has been put to the test—and failed. Researchers found that the study behind the controversy made key mistakes when analyzing supernova data. After revisiting the evidence, astronomers concluded that cosmic acceleration remains as strong as ever.
In physics — when we accelerate an object by a constant speed, then the result will be that the speed of the accelerated object will increase (in German: gleichmäßig beschleunigte Bewegung).
This is what we observe in the universe.
I would suggest to discuss the idea that every atom is working according with the laws of thermodynamics like a machine. This does mean that the energy which is stored in an atom will change very slowly towards a state where the amount/intensity of energy is lower.
And when as a side effect of this change — we will get a very tiny push-effect; then this push-effect might be the reason for the increasing accerating rate of the expanding universe
Because the speed of the expansion is a combination of two effects:
a) the expansion which was created by the big-bang. b) the push-effect which we have from atoms as a side effect when their energy-concentration will change to a lower/weaker side.
This idea is already published in my book in German language: Kinseher Richard “Auflösung großer Fragen: Was ist Bewusstsein? Was ist Zeit?” (= Answer for two questions: What is consciousness? What is time?)