Remember watching Wheel of Fortune (or "Fat People Guessing" as it's sometimes know) back in the 80s? Of course you do. Well in the final round everyone picked the same letters R, S, T, L, N and E for the vowel. Why? Because more often than not the word or phrase contained those letters. Why? Cos they're the most frequently appearing letters in the English language. It was a given, everybody did it, if you didn't there was something wrong with you. From then on you relied on your wits to solve the Ivy League puzzles that Vanna White threw at you.