If each super mario maker level has a 16 digit code and each digit can be all 26 letters of the english alphabet (A-Z) and all ten arabic numerals (0-9); then how long would it take all 7 billion people on Earth if they each submitted a single level per day, 10 lpd, 100 lpd, 1000 lpd, 100000 lpd, 10000000 lpd, 1000000000 lpd, etc., to exhaust the number of level codes.
(36!×16) is a big number.
