Nick Nolte

You work at a job, and you reach a certain level, and you're a little satisfied, and you keep going at it a little more, and you finally finish it. You go, 'Ah,' all your dopamine receptor sites are full. You're satiated.

Software options proliferate extremely easily - too easily, in fact - because too many options create tools that can't ever be used intuitively. Intuitive actions confine the detail work to a dedicated part of the brain, leaving the rest of one's mind free to respond with attention and sensitivity to the changing texture of the moment.