It’s true that robots (and other smart technologies) will kill many jobs. It may also be true that newer collaborative robots (“cobots”) will totally reinvigorate how work gets done. That, at least, is what the economists are telling us. Should we believe them? And: the man who wants America to “think harder” has parlayed his quixotic presidential campaign into front-runner status in New York’s mayoral election. And he has some big plans.