How the idea of feedback changed

For most of human history and in almost all places it would have seemed absurd for employers to give their employees personal feedback.

Things have changed today because the tasks of business are more psychologically complex than in the past. There’s been an entirely practical realization that to get the best performance, people need to be psychologically in a good place: which means well-motivated, in good spirits, even enthusiastic and eager around the tasks they are doing. This is the only way not to waste a lot of money.