I recently came across a stack overflow post just perfect for Pi day. The path to knowledge is asking many questions, and it is a strange feature of the days in which we live how steep this path can be: a question that starts “How to determine whether my calculation of pi is accurate? I was trying various methods to implement a program that gives the digits of pi sequentially…” eventually receives an answer that starts “Since I’m the current world record holder for the most digits of pi, I’ll add my two cents…”