Ptolemy was right

[Banefull]

Quite amazing how choosing a different reference point makes things different.

Time and space are both relative. Space as an entity merely explains the relative movement of objects. Time runs at different rates for all observers. However, there is such a thing as absolute space-time. If a baseball was thrown in the air, two observers in different locations watching the ball would agree upon the arc of the trajectory that the ball traveled. What they would disagree upon is where that trajectory was and how long it lasted.