This is a variation on a joke I heard from the nerdy comedian Don McMillian... [1] I used to work at JPL, and I could tell what anyone's job was by asking them

This is a variation on a joke I heard from the nerdy comedian Don McMillian... [1] I used to work at JPL, and I could tell what anyone's job was by asking them one question... What is Pi? Ask a mathematician, and they will say "Pi is ratio of a circle's circumference to its circle." Ask a physicist, and they will say "Pi is 3.141592653589793." Ask an engineer, and they will say "Pi is about 3, but just to be safe, let's call it 4." Ask a programmer, and they will say "I'd write you a program to calculate that, but I don't have enough time to figure out how to do that quickly & precisely, and I don't feel like getting in a fight w/ QA over a program that approximates Pi, so what you probably want is the constant hardcoded into the Math library or something you find on Stackoverflow." Ask a manager, and they will say "When do you need to know by?" [1] Don McMillan - Greatest Charts (Volume 1) -- https://youtu.be/LYE3GtXqDV0 https://youtu.be/LYE3GtXqDV0