On Time
We live in a 4 dimensional universe. This can be illustrated as follows: If I wish to meet someone I can give them 2 coordinates to described the position on the earth's surface (I'll meet you on the corner of X and Y streets). For 3 dimensions we need 3 coordinates (corner of X and Y streets on floor Z), but we also need to specify the time in order to give a point in the space-time continuum.
This is elementary. We can also consider that to have substance a shape must have length, breadth and width. It must also exist for length of time.
Now consider this: We can form a 2 dimensional circle from a series of 1 dimensional lines. Theoretically it would take an infinite number of lines but let's assume for the moment that our 1 dimensional lines have a width of 1 quantum. So, in the same way, we can build a 3-dimensional sphere from 2-dimensional planes and a 4-dimensional space-time continuum from a series of 3-dimensional 'snapshots'. This is similar to the concept of a movie where the movement is produced from a series of 2-dimensional pictures. So imagine we could take a series of 3-dimensional snapshots each of 1 quantum. Of course, in turn each 3-dimensional snapshot can be produced from 2-dimensional planes and each plane from 1-dimensional lines.
Now, in our 'snapshot' I'm throwing a ball up in the air. Is there anything in this snapshot that distinguishes it from the corresponding snapshot of when the ball's landing? This is comparable to the lines making up the top and bottom of circle.
In this snapshot everything has a position but is there anything in it which defines its movement?
