At first, we give them all our energy. That could mean time, labor, or money. Once we’ve done our best, we have a response to what we’ve done, and whatever feeling we experience is our reward. When the reward feels like it’s greater than the energy and effort we’ve expended, we don’t give up. But when the result of all our efforts is a disappointment, we tend to fail. I think these conditions are essential to making games that people want to play, and this same logic helps to explain what makes or breaks a person’s mission to learn English or the like.
