Does a hidden mirror universe influence our world?

One of the fundamental parameters of our universe is the Hubble constant H0. It indicates the speed with which distant objects move away from us and thus determines the fate of the entire universe. Today we know that it is not a constant in the strict sense, since H0 changes with time.

However, science has a fundamental problem with it. Depending on how it is measured, its value differs. The difference between the measurement methods even grows the more precise the measurements are. If H0 is cal...