I find it frightening how views anecdotally online and from people I meet in person are more and more shifting to zero-sum. It now seems even dominant here on HN. By any objective metric (GDP, child mortality, people with college degrees, literacy, average home size) lives have gotten better. Yet everyone is focused on others having more. "It's the billionaires who are sucking up the gains, jobs moving abroad...". It seems to be blinding many people from seeing what liberalism (classical) has given us. I'm afraid we are gonna kill the golden goose and see more conflict within and between societies and countries because of the zero-sum thinking.