

The Science of Making and Keeping Friends | Robin Dunbar
Aug 23, 2021
Robin Dunbar, Emeritus Professor of Evolutionary Psychology at Oxford, dives into the crucial role of friendships in our lives, especially amid rising loneliness. He introduces 'Dunbar's number,' explaining our brain's limit of maintaining around 150 meaningful connections. The conversation explores the impact of social media on relationships, the evolutionary origins of social bonds, and the importance of nurturing friendships for well-being. Dunbar also shares insights on gender dynamics in friendships and practical tips for overcoming the current friendship crisis.
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Dunbar's Number
- Dunbar's number, around 150, represents the cognitive limit on meaningful relationships one can maintain.
- This includes family, friends, even pets or fictional characters, reflecting emotional connection.
Layered Relationships
- Relationships are layered like ripples, with intimate "shoulders-to-cry-on" friends at the core (around 5).
- Outer layers expand to acquaintances (500) and recognizable faces (1500), with decreasing emotional intensity.
Maintaining Friendships
- Maintaining friendships requires effort and time investment, roughly correlating with emotional closeness.
- Relationships decay without interaction, eventually shifting to outer layers (acquaintance).