I’m sure that Matt Yglesias has forgotten more economics in the past hour than I will ever know. And yet, he believes that “if spending on military robotics declines then our most talented roboticists will focus more of their time and attention on civilian applications.” Really? Military spending doesn’t affect the overall demand for engineers and scientists? It’s just as likely that if spending on military robotics declines our most talented roboticists will leave robotics and science altogether. If Lockheed Martin, Raytheon, etc. weren’t hiring, many of my friends would be out of a job, not making snazzy commercial gadgets.