Dunbar Layer Size Lookup

Bounded offline reference: Dunbar-associated social-network layers are often described near5,15,50,150with larger layers, as approximate research patterns. Source: Dunbar, social brain/social network layer research. Not a universal personal capacity or required relationship quota. Only explicit topic keys supported: inner, sympathy, affinity, active, limitations. No complete external corpus, live data or personal assessment implied.

Description

Dunbar layer references describe approximate nested social-network sizes under particular measurement conventions.

Dunbar layer references describe approximate nested social-network sizes under particular measurement conventions.^[1]

They do not establish a fixed social capacity for every individual.

When to use Dunbar Layer Size Lookup

Use this tool to read a bounded explanation for an exact reference topic. Establish the population, period, variable definitions, sample coverage and independently applicable instrument or calibration.

How to use Dunbar Layer Size Lookup and understand its results

Establish the population, period, variable definitions, sample coverage and independently applicable instrument or calibration.
Enter topic, using the field meanings and rules below, then run the tool.
Read result.text for the exact topic token. Consult the limitations entry where available before applying the reference to your actual context.
Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.

Input field	Meaning	Value type	Requirement
topic	Topic	string	Required

Choose one exact topic token from the table. The implementation looks up the stored value and returns it in the documented output field. Matching is case-sensitive; unrecognized tokens fail. This is an offline bounded reference, not a live catalogue or independent attribution.

Topic token	Stored value
inner	An approximate5-person close/support layer is commonly discussed.
sympathy	An approximate15-person sympathy layer is commonly discussed.
affinity	An approximate50-person affinity layer is commonly discussed.
active	An approximate150-person active network is commonly discussed.
limitations	Layer boundaries, measurement and population vary; do not diagnose social ability from counts.

value=referenceTable[exactToken]

Use the matching field units and the exact boundary, ordering and reference rules above.

Output field	Meaning	Value type
result	Calculated observation or qualified reference	object
result.text	Stored explanation for the exact selected reference token.	string

json

{
  "input": {
    "topic": "inner"
  },
  "output": {
    "result": {
      "text": "An approximate5-person close/support layer is commonly discussed."
    }
  }
}

Limitations and assumptions

Population definitions, survey design, calibration and observation coverage are independently established. A result describes the supplied record or conditional model without demonstrating causation, validating an instrument or supplying representative population evidence. Layer boundaries, measurement and population vary; do not diagnose social ability from counts.

Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Extremely large composite outputs are rejected.

Alternative or Complementary methods

For a related step, use Political Discussion Network Size Calculator: A discussion-network size counts distinct observed partners of a declared ego. For a complementary comparison, use Weak-Tie Strength Four-Point Scale Tool: Weak-tie strength requires declared observations and an operational definition of tie dimensions.

References

Dunbar Layer Size Lookup — tool.io

Similar or alternative tools

Political Discussion Network Size Calculator
A discussion-network size counts distinct observed partners of a declared ego.
Weak-Tie Strength Four-Point Scale Tool
Weak-tie strength requires declared observations and an operational definition of tie dimensions.