Wednesday assorted links
1. Do you really understand the letter “g”?
2. Saudis to embrace opera, with help from France.
4. William Vollmann update. Yes, I’ve ordered the book.
5. How Facebook benefits from Instagram. And 37 definitive seconds on the cultural difference between Washington, D.C. and the Bay Area, recommended.
6. Tyler Cowen rates America (short NPR podcast).