But I can also achieve the same (act of redrafting) by refactoring my source code, working on a math formula or you know just sit there and think in my mind. A

But I can also achieve the same (act of redrafting) by refactoring my source code, working on a math formula or you know just sit there and think in my mind. All of those are related to language, because our thinking (and also math and logic) is based on language. But just because we think in language, does not imply that writing is the only form of reasoning. It is ok when it is your preference and certainly has a value - like other thinks.