Dunbar's Number is the number of people you can maintain relationships with, and a reasonable guide for the size and scope of your CRM. It's based on the 1990s research of anthropologist Robin Dunbar, who tracked a correlation between the size of a primate's cortex and the size of social group for that species. Dunbar suggested that humans are capable of maintaining 150 'socially stable' relationships, or 'relationships in which an individual knows who each person is and how each person relates to every other person.'
Why does Dunbar's Number matter to you? Because its important to know where to focus your attention. Identifying the contacts - the relationships - that hold the most value to you is essential in maintaining your outreach to them. Whether your number is 150 or a figure that's smaller or larger, it's important to know that there is a limit to the meaningful engagement that you can maintain.
Watch more here.