[vehemenz]

I hear this line a lot. Writing is not the same as thinking. Rather, it's a type of thinking that forces you to lay out your argument in a particular, static way. There are pros and cons with this style of thinking, just as there are with internal dialectic and Socratic-method style argumentation. If you have stable arguments that you've repeated over and over again to yourself or to other interlocutors, writing them down is just a formality.