The 13th edition of Expo Chicago is currently buzzing as huge squads of museum directors, curators, and collectors have descended on the Windy City this week for the fair. This edition is smaller than years past, with a pared-down group of 130 exhibitors—coming from cities as far-flung as New York, Tokyo, Memphis, London, Buenos Aires, and Lagos—spread across the Navy Pier. “The scaling down in si...