Kevin shrugged. "People lived before money was invented. Money’s not a law of nature. Money’s a medium. You can live without money, if you replace it with the right kind of computation. The proles know that. They’ve tried a million weird stunts to get by, roadblocks, shakedowns, smuggling, scrap metal, road shows.... Heaven knows they never had much to work with. But the proles are almost there now. You know how reputation servers work, right?"