Turn any article into a podcast. Upgrade now to start listening. Members can share articles with friends & family to bypass the paywall. Physics has its laws of thermodynamics; economics has the law of large numbers; and even pessimism has Murphy’s law. Professional military education—the war colleges and staff colleges that prepare military professionals for greater responsibility—has an iron law, too, handed down by the Prussian war theorist Carl von Clausewitz: The nature of war is immutable, while the character of war changes over time. Joseph O. Chapa holds a Ph.D. in philosophy from the University of Oxford and is a research fellow at the University of Massachusetts-Boston’s Applied Ethics Center. He writes about technology, ethics, and war. His book, AI For The Rest of Us, is forthc