I often face the objection to my policy arguments that they are “not politically possible,” even from Left-wing allies who agree with me on the merits. For example, last year Stanford published a study showing that it is possible, in terms of technology, engineering, and practices, to power the world with renewable energy within a single generation. But whenever I raise this, people say “That’s not politically possible.” Well, make it politically possible by advocating for it! The more people that advocate for rational laws and policies, the more likely we are to get them! The argument that something is not within the bounds of political possibility is a self-defeating self-fulfilling prophecy. You cannot win if you do not try.