It's Apple's fault for writing things like: "OS X 10.9". If the X is a 10 then it should be "OS X.9", the fact that both the X and the 10 are there proves that

It's Apple's fault for writing things like: "OS X 10.9". If the X is a 10 then it should be "OS X.9", the fact that both the X and the 10 are there proves that the X is pronounced "eks" :)