Intelligence level/12

Intelligence level 12 is the level of intelligence required to understand fractions. Currently, there are no people in the world who have this Intelligence level, as the highest Intelligence level possible at this time is 5. Also, while any person on earth has an Intelligence level of five, it is impossible to have an Intelligence level of 12. This is proven by the Von Rauschenburg Principle. It was possible at one time to have an Intelligence level of 12 or higher, because many mathematical works use fractions and parts of number, indicating that it was once known what they mean.

Understanding Letters
It has been recently theorized (but not yet proven) that in order to understand the letters g, y, q, k, and x, an intelligence level of 12 or higher is necessary. More testing is underway to see if it is even possible to understand these letters with other levels of intelligence, in which case it would be theoretically possible to quantify intelligence levels through the use of fractions (or those pointy things, whichever is more convenient).