Math talks in Chile

USACH In both Panama and also Chile, abbreviations include more than just the first letter of each word, making the abbreviation more pronounceable. In Panama, I'd spent a week at the Universidad de Chiriquí, called UNACHI; here in Chile, I kicked off my talks at the Universidad de Santiago, Chile, called USACH. In the fortunately/unfortunately genre . . . unfortunately , the department secretary there forgot to send out an announcement about my visit: fortunately , the chair figured out (the day before I arrived, at 10 p.m.) that it needed to get sent out; unfortunately , only 6 people showed up for the talk; fortunately , that gave me a chance to fix the mistakes in Spanish in my slides before I showed it to lots more people. One delightful thing I discovered at USACH was that their wifi is "eduroam", the same system my home college uses, and so I had zero difficulty logging in. That was a delightful surprise, as I haven't discovered eduroam anywhere in Panama....