Links For April 2026

[I haven’t independently verified each link. On average, commenters will end up spotting evidence that around two or three of the links in each links post are wrong or misleading. I correct these as I see them, and will highlight important corrections later, but I can’t guarantee I will have caught them all by the time you read this.]1: It’s easy to draw Venn diagrams for two or three concepts, and doable for four or five, but after that it starts to get thorny.Left: Venn diagrams for 2 through 5 sets. Right: One possible diagram for 9 sets.2: Did you know: in many countries, desecrating the national flag is illegal. In some countries, desecrating foreign flags is also illegal. But in two countries - Uruguay and Denmark - it’s only legal to desecrate your own nation’s flag, but not that of a foreign nation! (because burning the home country’s flag is protest / protected speech, but burning foreign nations’ flags threatens diplomatic relations).3: Nicholas Weininger on why governments…