There’s also the fact that decision-making can be altered by exhaustion, among other things*.
Anyway, based on the blog post and the snippets of articles, it seems to me that intrapersonal intelligence as defined by Howard Gardner is a key component of willpower as it’s viewed nowadays.
(*) I recommend playing a realistic racing video-game, or any such unforgiving game, while sober, then after drinking just one glass of alcoholic beverage. It’s pretty enlightening.
