Make new friends but keep the old ones until you reach at least the magic number that guarantees success in life.
This is what her British anthropologist and evolutionary psychologist tells us Oxford, Robin Dunbar, the academic who employs mathematics in the analysis of human relations.
Dunbar has found that different social circumstances require different numbers of friends and acquaintances and this he does again in his new book, quantifies friendship.
In the “Friends: Understanding the Power of our Most Important RelationshipsDunbar reveals the “magic number” of friends he describes as needed for personal success. This is the 150 friends, including relatives.
The “golden number” is now known as the “Dunbar number”, for which the 73-year-old professor says that “in many ways, the family is just a special type kisser, so they play the same role “.
In his analysis, the 150 friends maintain different bonds, other “qualities of friendship”, as the academic explains. Most people, he tells us, have 5 close friends, people who would give you their kidney, as he typically says.
Others 12-15 are supportive friends, people who will grieve over your death. And the other 50 are acquaintances-friends, people who will come to your birthday party, but not to a dinner at your house.
The rest are just acquaintances, people you see at weddings and social events.

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