HOA

A new app called Lathoa is launching for children learning mathematics, built around an unusual teaching method: its AI assistant gives wrong answers on purpose. The idea is that kids learn better by spotting and correcting the AI's mistakes rather than passively accepting correct answers. The launch has drawn attention online, with readers debating whether intentional errors are an effective teaching tool or a confusing approach for young learners.

Columbia University neuroscientist Carl Hart, known for arguing that drug policy is driven by fear rather than science, is being discussed again. Commentary recalls his high public profile advocating evidence-based drug reform, including his disclosure that he personally uses psychoactive substances, a stance that made him one of the most prominent figures in the drug policy debate.

The Wall Street Journal reports that stockpiling of copper in the United States is raising concerns about a possible global supply crunch. Large volumes of the metal are being pulled into American warehouses, tightening availability elsewhere and pushing up prices. Traders and industrial buyers are watching closely, as copper is essential for power grids, electronics and the energy transition, and shortages could ripple through manufacturing.

A small hoard of medieval English coins has been unearthed near the Vatican in Rome, and archaeologists believe it points to English residents holding a privileged status in the medieval holy city. The find suggests an established English presence with special standing in the area centuries ago, and it is drawing attention from history and archaeology enthusiasts.