Theo Marboah, a student of medicine at Pavia University, has a passion for contemporary African and Afrodiasporic visual culture. I had the chance to hear Theo speak in Palermo at Resignifications: The Black Mediterranean, where he introduced “Echoes and Agreements” (“Echi and Accordi” in Italian), an ongoing digital experiment that uses diptychs to bring together archival images from the Black diaspora …