Communism is also the name for the positive alternative to capitalism’s permanent and expanding exploitation, crisis, and immiseration, the name of a system of production based on meeting social needs—from each according to ability to each according to need, to paraphrase Marx’s famous slogan—in a way that is collectively determined and carried out by the producers. This positive dimension of communism attends to social relations, to how people treat each other, animals, things, and the world around them. Building communism entails more than resistance and riot. It requires the emancipated egalitarian organization of collective life.