The Tripod Effect: Co-evolution of Cooperation, Cognition and Communication

Abstract

This article concerns the co-evolution of hominin cooperation, communication and cognition. Certain hominin ecologies seem to have relied on cognitive foresight. The capacity of planning for future needs, combined with more developed cooperative skills, opened up the cognitive niche of cooperation towards future goals. Such cooperation requires complex intersubjectivity (theory of mind). We analyze five domains of intersubjectivity: emotion, desire, attention, intention, and belief; and argue that cooperation towards future goals requires, among other things, joint intentions (we-intentions). We scrutinize the cognitive and communicative conditions for reciprocal altruism, found in some species; and indirect reciprocity, a form of cooperation typical in the hominin line.