a Scalar Quantity

Two points set bounded 
in a plane of space and time
a known distance apart
a third number is what you
alter, modify or change
.
with one number you
can change a small thing into
something far larger
making a small figure be
proxy for something larger
.
with another one
you can make something far, close
spanning the distance
with your hands that takes mere hours
or countless lifetimes to cross