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“Dunbar’s number” is a theoretical cognitive limit on the number of stable social relationships humans can maintain at one time. According to Robin Dunbar, a British anthropologist, humans have the cognitive capacity to keep track of somewhere around 150 close personal connections. Beyond this limited circle, we start treating people less like indi
... See moreJosh Kaufman • The Personal MBA: A World-Class Business Education in a Single Volume
Andy Bromberg: The wisdom of crowds is giving way to the “wisdom of communities.” In a world of ever-greater complexity, no one person can possibly make sense of all the signals and all the noise — from a single, static vantage point. A networked group is required to adapt to this new world... People are no longer being polled in isolation but rath... See more
future.a16z.com • 21 Experts on the Future of Expertise - Future
My anecdotal evidence generally seems to support the idea that group sizes will usually plateau at a number lower than 150 participants. This comes from 20 years of doing facilitation both on and offline, running several software companies, and running various forums at America Online. In particular, many online communities provide good evidence fo... See more
Christopher Allen • The Dunbar Number as a Limit to Group Sizes
fragmentation of the social sense-making and collective action capacity