Pi is the ratio of a circle’s circumference to its diameter. Its value is usually abbreviated to 3.14159; however, as an irrational number, Pi goes on infinitely. An irrational number is a number that cannot be made into a fraction. Pi is irrational, but without it we would have no idea how to calculate things like the size of the world or how much flour should be used to make a perfect twelve-inch pizza. If an idea seems irrational to you, perhaps it might still be possible. Perhaps, like Pi, the world is full of infinite seemingly irrational possibilities. What is irrational today may revolutionize tomorrow.