Many realities of the physical world seem contradictory to our minds but are simultaneously true. Are time and space separate dimensions of reality, or are they inextricably intertwined? Are we separate individuals or are we always influenced by each other? At first this feels to the human thinker like an impossible logical dilemma. Go back to sympathize with the fictional young square in Chapter 1 who first discovered the reality of a world that was simultaneously two-dimensional and three-dimensional. They could not see how both those descriptions of reality could be true, and certainly could not convince their parents that both could be true. How could they think of such a thing?