Implications
- devotion/love: 5 people share 40% of social time
- close friends: +10 people share 20% of social time
- i.e. only 15 people get 2/3 of your attention
- friends/colleges: 150 people
- largely correlated with today’s company size theory
- friends … “maintain stable relationship”
Non-Romantic Numbers
- 5 loved ones
- 15 good friends
- 50 friends
- 150 meaningful contacts
- 500 acquaintances
- 1500 people you can recognize
