Good article, and I wish to add some thoughts: Time is a measurement of change, it is the method in which we “explain” the difference of the state of energy and matter, for instance: entropy, change of state, location, which links into relativity and infinity. Einsteins theory basically reviews time as infinite forks for every instance of change, it translates that every change creates its own “time line” and we have infinite others dimensions or existences. This is a romantic notion and at the moment cannot be proved or disproved, only postulated. However, what we can prove (philosophically and physically) is that change is constant, and every change is measured through relativity to other changes. We can take a physical point and use this as a baseline for measuring change. So the simplest form of change would be the macro change in a 100 meter race, where the difference between the starting position and the ending position. Or we can go to the micro change in a state of a quark (whether viewed or not viewed), mind you from the micro dimension of a quark, this could be macro to, after all size is relative too.

Bottom line: Time is an expression of change, and in an infinite set, there are infinite changes. As such, a “point in time” is a set of states of energy and matter in comparison to the the set of states after a change defining a new “point in time”.