Time Measures Change
Whatever disagreements and misconceptions some may have about the physical function of time I discussed, the one thing most will agree with is time measures change. What can be gleamed from changes we measure over time that can also be directly observed? Take a look at some of the changes we measure with time such as driving in a car, humans as we grow and age, Earthly erosion, plate tectonics, or even its position in the solar system. What is common and at the core of all those? For a moving car its change of position is obvious, the Earthly changes happen over a scale of distance and time that is difficult to notice in a short-term direct observation; the same is true for the growth and aging of a human. Yet, over longer time scales the physical changes of position in space of human cells and their functions, or the plates that ride on the mantle is as obvious as a moving car. Science compares these changes of position in space to a device that measures consistent incr...