Allen says something clever, Zoe says something cleverer, and the viewer is left keeping score on a napkin. About a minute of it is scenes you have already watched, in case you have the memory of a goldfish. A thread left dangling since S03E07 gets tied off at last, neatly enough to make a librarian smile. Of all the things said this week, "I still ate it, though." is the one that will follow you to bed. Recommended, with a cup of something warm.