When the first time you create something, you allow your mind to freely sail. There's no restrictions, though a plan works. This basic plan does not pull you down, it does not dominate over you. Why? Because the space on the right side of your page is blank; and what comes out from your mind is what you pen down. But when you already have words filled on the right side of your cursor, to change those words you need to read and re-read them. Thus in a way your have to keep those words in mind. You are free to change a word but controlled by the words already there...