Underdog strategies are hard. - Malcolm Gladwell

the logic of the inverted-U curve is that the same strategies that work really well at first stop working past a certain point,

Puzzle Number One: Why can’t we tell when the stranger in front of us is lying to our face?

Those three things — autonomy, complexity, and a connection between effort and reward — are, most people agree, the three qualities that work has to have if it is to be satisfying. It is not how much money we make that ultimately makes us happy between nine and five. It’s whether our work fulfills us.