Reading the word "YOU" meaning, everyone as reading. "I" meaning just "I", one.
then when someone read's a book, saying "YOU", would be read as reading "YOU", and not ME, but reading the word "I", would be read as meaning ME is claiming the person reading the book, means them. - "I" may be wrong about this, but "I" guess its how someone reads something.
My Example:
as reading YOU can be YOU, everyone who reads, as YOU as everyone, YOU (Just like a Bouncing word), from talking to people.
"I", can be only ME, one, seperate from reading YOU as everyone who is reading the word, "I", is a seperation, and only one, "I".