What the flock knows that the birds do not: exploring the emergence of joint agency in multi-agent active inference

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Autori principali: Maisto, Domenico, Nuzzi, Davide, Pezzulo, Giovanni
Natura: Preprint
Pubblicazione: 2025
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author Maisto, Domenico
Nuzzi, Davide
Pezzulo, Giovanni
author_facet Maisto, Domenico
Nuzzi, Davide
Pezzulo, Giovanni
contents Collective behavior pervades biological systems, from flocks of birds to neural assemblies and human societies. Yet, how such collectives acquire functional properties -- such as joint agency or knowledge -- that transcend those of their individual components remains an open question. Here, we combine active inference and information-theoretic analyses to explore how a minimal system of interacting agents can give rise to joint agency and collective knowledge. We model flocking dynamics using multiple active inference agents, each minimizing its own free energy while coupling reciprocally with its neighbors. We show that as agents self-organize, their interactions define higher-order statistical boundaries (Markov blankets) enclosing a ``flock'' that can be treated as an emergent agent with its own sensory, active, and internal states. When exposed to external perturbations (a ``predator''), the flock exhibits faster, coordinated responses than individual agents, reflecting collective sensitivity to environmental change. Crucially, analyses of synergistic information reveal that the flock encodes information about the predator's location that is not accessible to every individual bird, demonstrating implicit collective knowledge. Together, these results show how informational coupling among active inference agents can generate new levels of autonomy and inference, providing a framework for understanding the emergence of (implicit) collective knowledge and joint agency.
format Preprint
id arxiv_https___arxiv_org_abs_2511_10835
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle What the flock knows that the birds do not: exploring the emergence of joint agency in multi-agent active inference
Maisto, Domenico
Nuzzi, Davide
Pezzulo, Giovanni
Adaptation and Self-Organizing Systems
Multiagent Systems
Optimization and Control
Neurons and Cognition
93A16 (Primary) 92B25, 91E10 (Secondary)
I.6.3; J.3
Collective behavior pervades biological systems, from flocks of birds to neural assemblies and human societies. Yet, how such collectives acquire functional properties -- such as joint agency or knowledge -- that transcend those of their individual components remains an open question. Here, we combine active inference and information-theoretic analyses to explore how a minimal system of interacting agents can give rise to joint agency and collective knowledge. We model flocking dynamics using multiple active inference agents, each minimizing its own free energy while coupling reciprocally with its neighbors. We show that as agents self-organize, their interactions define higher-order statistical boundaries (Markov blankets) enclosing a ``flock'' that can be treated as an emergent agent with its own sensory, active, and internal states. When exposed to external perturbations (a ``predator''), the flock exhibits faster, coordinated responses than individual agents, reflecting collective sensitivity to environmental change. Crucially, analyses of synergistic information reveal that the flock encodes information about the predator's location that is not accessible to every individual bird, demonstrating implicit collective knowledge. Together, these results show how informational coupling among active inference agents can generate new levels of autonomy and inference, providing a framework for understanding the emergence of (implicit) collective knowledge and joint agency.
title What the flock knows that the birds do not: exploring the emergence of joint agency in multi-agent active inference
topic Adaptation and Self-Organizing Systems
Multiagent Systems
Optimization and Control
Neurons and Cognition
93A16 (Primary) 92B25, 91E10 (Secondary)
I.6.3; J.3
url https://arxiv.org/abs/2511.10835