Uploaded May 2016 | Updated September 2026, 3 weeks ago

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Is there a limit on how many you can have?
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References:
Effect of social networks on 10 year survival in very old Australians: the Australian longitudinal study of aging jech.bmj.com/content/59/7/574

Coevolution of neocortical size, group size and language in humans. http://www.cogsci.ucsd.edu/~johnson/COGS184/3Dunbar93.pdf

The Limits of Friendship newyorker.com/science/maria-konnikova/social-media-affect-math-dunbar-number-friendships

Modeling Users' Activity on Twitter Networks: Validation of Dunbar's Number journals.plos.org/plosone/article?id=10.1371/journal.pone.0022656

Connection strategies: Social capital implications of Facebook-enabled communication practices nms.sagepub.com/content/13/6/873.full.pdf+html