Lili Dem Keyes noted:

Interesting thing about pi...

the numbers themselves are meaningless.  If doing manual application,
the three number 3.14 are enough for most people to apply.  After that,
the numbers could be *anything*.  

However...  When the value known as -pi- is applied to a squared
radius, it creates the perfect shape of a circle.  The numeral value
goes on forever... it is incomplete to all, even the most sophisticated
computer.  Yet pi becomes comprehensible in a circle.