CONCEPT
Joint Attention
Two or more minds focusing on a common object with mutual awareness of the shared focus—the cognitive foundation of communication, empathy, and the common world.
Joint attention is the capacity of multiple individuals to attend to the same object simultaneously while being aware that others are attending to it—a triadic structure involving self, other, and shared referent. In developmental psychology, joint attention emerges around nine to twelve months and is considered foundational for language acquisition, social cognition, and theory of mind. Yves Citton extends the concept from dyadic infant-caregiver interaction to the political and cultural scale: joint attention is the infrastructure of the common world, the shared reality that exists not inside any single mind but in the intersubjective space that mutual attending creates. A society's capacity for joint attention determines its capacity for democratic deliberation (requires attending to the same evidence), cultural coherence (requires attending to the same symbols), and collective action (requires attending to the same problems). When joint attention dissolves—when algorithmic personalization ensures that no two people encounter the same content—the common world evaporates, not through any deliberate destruction but through the aggregate effect of individually optimized experiences.
