I’m not going to sleep. I’m not going to do anything else the rest of the weekend. I won’t go to bed until Monday afternoon. I’m going to ‘studio.’. It’s homework, an architect’s version of final exams. I’m designing a mixed-use hybrid—a 750,000-to-1,000,000-square-foot facility next to the John Hancock Center in downtown Chicago. It’s got a museum, theater, offices.