These exchanges are asymmetrical. Power tides shape which boats cross and which signals travel. Historically dominant islands—metropolitan centers of wealth, knowledge, and prestige—have rambled their languages outward, often drowning local voices. The archipelago metaphor reminds us that every conversation has currents: economic forces, institutional incentives, and historical legacies that make some crossings easy and others perilous. True conversation requires attention to those currents and intentional practices that let quieter islands speak: platforms that amplify, institutions that redistribute resources, disciplines that value local knowledge alongside abstract theory.