Dunbar’s Number & Ekistics
- Pete Ward
- Nov 28
- 3 min read
Implementation in Anthropolis

Dunbar’s Number: The Anthropology of Trust and Coherence
Dunbar’s Number — roughly 150–200 meaningful social relationships — emerges from human evolutionary biology. It represents the cognitive limit of stable, trust-based social bonds that a human can maintain without formal bureaucracy. In ancestral villages, military units, research teams, and even modern online communities, groups naturally gravitate toward this scale before fragmenting or losing cohesion.
In Anthropolis, Dunbar’s Number is not treated as a restriction, but as a biological design parameter — a principle for engineering community coherence, conflict reduction, and meaningful participation.
It ensures that:
Residents know one another personally, not abstractly.
Governance remains relational, transparent, and cooperative.
Social cohesion replaces surveillance, policing, or hierarchical control.
Collective responsibility emerges organically because people feel genuinely seen.
Anthropolis treats Dunbar’s Number as a human-scale constant the way architects treat load-bearing limits or biologists reference metabolic baselines.
Ekistics: The Science of Human Settlement
Ekistics, founded by Constantinos Doxiadis, is the multidisciplinary study of how human settlements function as living systems. It looks at the interrelationship between:
Nature
Anthropos (the human)
Society
Shells (built environment)
Networks
Flows of energy, goods, and information
Ekistics argues that successful settlements must align these layers in harmony. The failures of modern urban sprawl — traffic, isolation, ecological damage, and economic dysfunction — stem from violating these principles through scale creep, fossil-fuel dependence, and centralized industrial planning.
Anthropolis adopts Ekistics as a systems blueprint, ensuring that each polis functions not as a subdivision or suburb, but as a coherent ecological organism.
How Anthropolis Integrates Dunbar’s Number and Ekistics into the Polis
Anthropolis becomes a new class of settlement by merging the human-scale insights of Dunbar with the systems-science structure of Ekistics.
1. Circular Village Design (Ekistics + Dunbar)
The polis is intentionally capped at 150–200 residents, forming a circular village with a central agora—a spatial embodiment of social cohesion.
This layout ensures:
Maximum walkability
Visibility and social interaction
Shared resources within a 5-minute radius
A natural, continuous mixing of all residents
The village geometry itself becomes a mechanism of social coherence.
2. Five Interdependent Districts (Ekistics Functional Zones)
Anthropolis divides essential communal functions into five districts surrounding the central agora:
Education & Remote Work
Food Production
Manufacturing & Fabrication
Healthcare & Well-Being
Fitness, Meditation & Regeneration
Each district is sized to accommodate human-scale working groups consistent with Dunbar’s Number — meaning no cluster grows too large to maintain interpersonal trust.
This prevents corporate scale creep, departmental silos, and institutional anonymity.
3. Social Governance Modeled on Biomimicry + Dunbar
Governance in Anthropolis is relational rather than bureaucratic.
Because residents operate within Dunbar limits:
Decisions are made through assemblies where individuals actually know one another.
Conflicts are mediated through familiarity, not enforcement.
Collective responsibility emerges through the same mechanisms found in small tribes, primate troops, and eusocial insect colonies.
No one becomes a faceless stranger; therefore no one becomes an exploitable “other.”
This makes the polis inherently resilient and self-regulating.
4. Ecological Intelligence as the Foundation (Ekistics: Nature First)
Anthropolis implements the first principle of Ekistics:
all settlement design must harmonize with the biosphere.
This is achieved through:
Living roofs
Shared greenhouse and water systems
Localized renewable energy
Low-carbon materials such as propolium
Walkable mobility
Zero-car internal design
Waste-to-nutrient loops
The polis is scaled down to fit the land, not scaled up to fit economic ambitions.
5. Networks of Many Poleis (Ekistics: Settlements as Systems)
While each polis holds ~150–200 residents, Anthropolis envisions a constellation of interconnected villages, each linked through:
Trade of locally grown foods
Exchange of advanced manufactured goods
Skill-sharing
Cultural gatherings
Collective emergency resilience
This creates a networked society that achieves the functionality of a city without the alienation of urban scale.
Each polis remains human-sized, but the federation of poleis becomes civilization-scaled.
In Essence
Dunbar’s Number gives Anthropolis its human coherence.
Ekistics gives Anthropolis its ecological and spatial logic.
Together they ensure that the Anthropolis becomes a biomimetic human settlement—an ecological village engineered around human neurobiology, ecological intelligence, and the lived experience of authentic community.


