This is interesting…
What’s unusual about this paragraph? It looks so ordinary that you’d think nothing was wrong with it at all, and in fact nothing is. But it is unusual, why? If you study it and think about it, you may find out, but you must do it without coaching. If you work at it long, its curiosity in it will dawn on you.

OOOOOHHHHH!!!!!!!!!! I know I know!!! The letter “E” isn’t used!