I arrived back in Syracuse at 9:45 on Friday night, after a twelve-hour flight from Beijing and a hop from Chicago. As you might expect, my weekend has been pretty busy with such exciting post-trip necessities as laundry, mail, shopping and intermittent sleep at times that are only slowly becoming normal. The last two weeks have been a remarkably busy, fascinating and exhausting experience. As promised, I intend to write in some detail about them here, but I don't really want to do it in one huge post, so it may take a few. The Summer Institute, at Zhejiang University, in Hangzhou, continued in much the same fashion as the first day, on which I already reported. I thought all my co-lecturers did great jobs, and the students were really quite impressive. (Can you spot which of the figures in the photo below isn't a lecturer?)