Unverified50% confidenceFactExact time
Dunbar's number exhibits a hierarchical structure: a core of 5, a sympathy group of 15, a close friends circle of 50, and an active social circle of 150, with each layer approximately three times the size of the previous one
1
Sources
50%
Confidence
Long-term
Relevance
8/10/2026
First Seen
Sources
Persodex：给iOS通讯录加上记忆的个人CRM工具
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