>>12274447The point is that the changes in state are somewhat arbitrarily defined by us humans. Let us say that there is a closed chamber where the temperature constantly cycles between two values. The water continuously evapourates and condenses, but has no other state than those and repeats in again and again. How would you distinguish one time from another in this system?
Also, how would a time machine even work? "Rewinding" all the events of the universe except for a few occupants? How would it be able to have an effect so wide?
