[justtart]

I enjoyed the article too.

It makes the assumption that the motivation is already there and he enjoys doing it, only is not seeing immediate feedback.

I think 3 years is kind of arbitrary and not to be taken literally. He's just saying that sometimes these projects take longer than expected to gain any traction

The thing about not being open to other opportunities reminds me of the idea of flow: You don't focus on getting into flow but you focus on avoiding distractions that would prevent you from getting there.