I suppose it's partly because I know I can change words, delete chunks, swap paragraphs around and cut out beginnings and turn them into endings or make page three into page six if I like. Every letter is malleable. And only by my hand. You can't take things back in conversation with others.
And it's also partly because I'm on my own. No one can chip in, disagree or talk over me. It is total control. The only boundary is my own imagination. And that is one of the few large things about me.