Daily Kos writes, Noah Smith, assistant professor of finance at Stony Brook University and a blogger at Noahpinion, writes The End of Labor: How to Protect Workers From the Rise of Robots: Here's a scene that will be familiar to anyone who's ever taken an introductory economics course. The professor has just finished explaining that in economics, "efficiency" means that there are no possible gains from trade. Then some loudmouth kid in the back raises his hand and asks: "Wait, so if one person has everything, and everyone else has nothing and just dies, is that an 'efficient' outcome?" The professor, looking a…