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Overview#

DunbarS Numbers a series of numbers that define a group (Society, Social network or a Community of Interest) sizes that increase by about a factor of three:

• 5 - clique
• 15 - sympathy group
• 50 - hunter-gather
• 150 - friends (Also Social network limit
  • An Army Company: 180
  • Amish Parishes: 113
  • Christmas Card Networks: 150
• 500 - megaband
• 1,500 - tribe

Robin Dunbar implied these limitations are based on the size of the brain.

These groups are sizes within different levels of Relationships.

We have also seen that groups of less than sympathy group referred to as the Creative Network.

DunbarS Numbers and Social contract#

As a Social size moves from a smaller Group to a larger group, the existing Social contract begins to fail. As sizes exceed Friends Group (150) suggests that any Community of Interest will not survive unless it is highly incentivized to remain together.

The Social contract failure is due to a Human Limitation of how many persons an Individual can have relationships involving trust and Responsibility

More Information#

There might be more information for this subject on one of the following:

• Social contract
• Social network

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• [#1] - Dunbar's number - based on information obtained 2018-05-02-
• [#2] - The Dunbar Number as a Limit to Group Sizes - based on information obtained 2018-05-02-