He mentions building habits in part 2 of the article, using the boiling the frog analogy (imploring the reader to use it for good instead).

My question, though, is how does a good habit expand into a great habit, without motivation? For your tooth example, once you start flossing you might as well floss all your teeth. The upfront cost of getting started with the floss is the worst part of it, but once you're there it's easy. This isn't true for all habits though. For many it's easy to just bail out fast. If I started doing 5 push-ups a day will I eventually do 100 and then 1000? Or would I settle somewhere on a mediocre range because it's easy to stop? Is there some sort of recursion or positive feedback loop that kicks in that rescues me from mediocrity if all I have is discipline and not motivation?