TouCon99

Our speed of light is not changing. "Let's say our speed of light is C, and the speed of light of the universe is 2C. After 1 second of the universe has past, light would have traveled 2C, and 2 seconds would have past for us."

The identity transformation of the frequency of photon as it moves through the universe. Our speed of light is not spatially varying. The speed of light of the universe is increasing, but it is not detectable, "because the rate at which we change in the universe is tied to the speed of light of the universe."

It is about the frequency of photon. It is also a constant. It is consistent. It should not be applied to multiple frames at the same time, because different frames have different time-dilation.

We are a part of the universe. The speed of light of the universe can vary, but our speed of light is always a constant, because the rate at which we change in the universe is tied to the speed of light of the universe. Since the speed of light of the universe is not a constant, it is not ST, and there is time-symmetry.

Let's say our speed of light is C, and the speed of light of the universe is 2C. After 1 second of the universe has past, light would have traveled 2C, and 2 seconds would have past for us. Since our speed of light have to be a constant, there is no time-symmetry, and no global law of conservation. However, since the speed of light of the universe do not have to be a constant, there is time-symmetry in the universe, and photon's energy should be conserved.

pdf (1 page) The pdf posits that the speed of light of the universe is c ∝ t^(-0.8), where t drops to 0 as time flows. As our speed of light is a constant, our flow of time speeds up. On the other hand, photon's frequency remains the same to conserve energy in the universe. The result is that comoving distance is D ∝ (1+Z)^(0.25) - 1 This linear relation agrees with the Pantheon+SH0ES data. What do you think?