I see your point. Mental rumination is, indeed, a form of production, and when I get home from my run, I reproduce that which I produced in my head into a paper or speech or discussion or whatnot. The essay is indeed weak in that it does not establish this.<p>Perhaps I should be more explicit by stating that producing through the act of thinking, excluding any other mental engagement, is for me somehow a deeper or more efficient form of production.<p>Thank you.