Mathematics

# Mental Arithmetic for Dummies (Using Binary Numbers)

Let's imagine a scenario: Your friend just discovered a cool new problem and decides to test you.$^1$ He asks you the following question:

If you could fold an infinitely large sheet of paper an infinite number of times, after how many folds would it be thick enough to reach the moon?

Seems impossible to calculate in your head, right? It's actually relatively easy. "Relative" is a flexible term, after all. The above situation did happen to me a couple of years ago and I was able to answer it