Energy is the ability to do useful work. Entropy can be seen as confusion or dissociated "energy" that is lost and no longer capable of doing anything useful. Heat lost to friction is a good example of entropy. A clock winding down is another.
In thermodynamics, systems move inexorably from a state of higher energy to a state of lower energy, and the energy has to go somewhere. The answer: entropy.
All that happens that we observe as the passage of time is the movement of our visible system from a state of higher energy to lower energy. The spring of a watch unwinds and the hours tick away. That "measures" time, but it is not time itself.
I fail to see how time is in any way related to space.
I fail to see how time is in any way related to space.
They were found to be intimately linked when it was learned that the speed of light is the same for all observers, regardless of any relative motion between them.
For example, if one were on a train throwing a baseball in the direction the train was moving, and that train was moving by a platform, an observer on the platform would see the ball moving forward at the speed the train was moving PLUS the speed the ball had been thrown. But, with light, it's not like that. If it had been a flashlight beam, instead of a baseball, BOTH observers, on train and on the platform, would see the beam moving precisely at the same speed. Crazy, but an apparent proven reality.
Anyway, the only way for light to have the same speed (units: distance/time), something else must change, namely time and distance. They apparently adjust themselves, depending on the rate of the relative velocity between two observers, such that the speed light remains a constant. ie, they are not absolute quantities, They vary according to the rate of relative velocity between two observers.