The Role of Reason in Productivity

It has normative force in that it tells you the causal relation. If your goal is for human beings to flourish why should we just make productivity the standard or GDP the standard? It's a crucial virtue but there's a question of what if the end is a happy life or a flourishing life. The idea is there multiple necessary causal inputs in that and the other way in which you start study nature is you sort of understand the nature of the being you are including how happiness workshow emotions work etc.