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...of the number line as a representation of time. The infinity of possibilities is likened to eternity and the space between two points is quite similar to the passage of time as seen in lifetimes, cultural and geographical ebb and flow and as a way to see the beginning and end. It is possible to live in the past and in the present; not, as Vonnegut's Billy Pilgrim 'unstuck in time' but, rather, as yet another mode of experiencing.
In the book, The Evolution Of Physics by Albert Einstein and Leopold Infeld, the theory of relativity is presented: "four numbers must be used to describe events in nature. Our physical space as conceived through objects and their motion has three dimensions, and positions are characterized by three numbers. The instant of an event is the fourth number....