Another way he states that principle is essentially "write as if you're going to publish your work." (In a journal, blog, etc.) This purpose informs how you wor

Another way he states that principle is essentially "write as if you're going to publish your work." (In a journal, blog, etc.) This purpose informs how you work on the subject. It will encourage you not to gloss over vague explanations or detour into irrelevant minutiae. After all, the presentation (you'll never give) will be an embarrassment if you get a core question and fumble through an answer because don't really understand it.