I remember reading this article a few years ago. Good Stuff with a fun twist on procrastination. We’ve all been there when working on a project that doesnt motivate us but we all have to do it once in a while.
Goes along with Flow (in the zone) theory. If you are a manager its good to understand this chart, as you assign tasks to certain people - you can keep them in the zone if you understand their skill level - or - provide training.