Not only are we living in a time where people are proud of their ignorance, argues the writer and comedian Andy Borowitz, but some of our most educated politicians are now playing down their intelligence as a strategy to get elected. Borowitz, the author of the long-running satirical column The Borowitz Report, examines this phenomenon in his new book, “Profiles of Ignorance: How America’s Politicians Got Dumb and Dumber.” “When Trump was elected, a lot of us supposedly knowledgeable people were taken by surprise,” he tells David Remnick. “But the more I researched the past fifty years, the more likely and plausible—and maybe even inevitable—his election was, because he actually had a great deal in common with his forebears."  Plus, native to the waters of the Indo-Pacific, lionfish have proven themselves incredibly well adapted to the Atlantic coast. In their original habitat, the fish are kept under control by natural predators: groupers, eels, and sharks. But, elsewhere, predators can’t compete, and lionfish—with their voracious appetite and high fecundity—are upending the equilibrium of reef life. The staff writer D. T. Max takes a stab at lionfish spearing off the coast of Florida and talks with one of the most passionate lionfish hunters diving today, Rachel Bowman.