“Calculating Empires: A Genealogy of Technology and Power, 1500–2025,” a show by researchers Kate Crawford and Vladan Joler opens at Fondazione Prada Osservatorio in Milan. Picking up where their collaboration Anatomy of an AI System (2018) left off, the duo maps how “empires of past centuries are echoed in the technology companies of today.” Exhibited is a cabinet of curiosities, a map room, and ephemera related to data and control spanning six centuries.