Arrival
(Actually August 26, 2019 -- we've been struggling getting email access!) Travel is like a lock on the door. Locks are cultural. Each looks different. Some are high-tech,and some are barely functional rusty bolts. The trick, when you’re in a new country, is to figure out how your small key works with the mysterious 2-dimensional hole on the door. This is a round-about-way to say we made it through the door. Our planes were reasonably on time. San Francisco (SF0) was stunningly clear. Beijing was thick with smog. Xi’an greeted us with a down-pour – which was cool and refreshing. When we arrived, my UC-SD students met us at our apartment with food, and helpful instructions on how the apartment works. We absorbed as much as we could, fell into bed, waking multiple times during the night. The next day was when the excitement began, and why I led with the extended key metapho...