A good exercise for economics students is to find instances of economic nonsense in a politician’s speech. In his speech of last Wednesday before Congress, President Joe Biden provided good course material. The proverbial Martian landing on Earth would have thought that Biden's goal was to emulate his immediate predecessor. Even some elements of style---the interrupted and hanging sentences, and the repeated words, for example---look like an imitation. By the way, render unto Caesar what is Caesar's: it’s all to...