Well according to http://en.wikipedia.org/wiki/Pi http://en.wikipedia.org/wiki/Pi Practically, one needs only 39 digits of π to make a circle the size of the o

Well according to http://en.wikipedia.org/wiki/Pi http://en.wikipedia.org/wiki/Pi Practically, one needs only 39 digits of π to make a circle the size of the observable universe accurate to the size of a hydrogen atom In my opinion trying to answer the question "to how many decimal places does nature carry out π before she decides that the computation can't be concluded" naturally leads us to what is known as Heisenberg's uncertainty principle