Distance is just the space (physical space)
that separates any two points.
Time is a
bit more complicated, and many people still argue
about what time is and why it only goes forward.
However, both distance and time are measures of a
difference between two states (an initial state,
where it begins, and a final state, where it
For example, you can consider two
points in space (different places), and look at
the distance between them (it is 2 miles between
my home and work), or you can consider two points
in time (different events), and look at the time
that separates them (it has been 6 hours since I
Their similarity isn't totally
by chance, and you may have heard of the theory of
relativity, which showed that space and time are
related in strange and unexpected ways!