By Erik Newton

Robin Dunbar's research suggests that human friendships naturally organize themselves into layers based on emotional closeness and degree of support. In everyday terms, the average person has about 5 good friends, another 10 friends they enjoy but are less close to, and roughly 40 additional friends and regular contacts who make up their broader social circle. Beyond that lies an extended network of approximately 150 relationships with people they know.

Some people interpret these numbers as hard limits, concluding that a person can maintain only five close friends and ten more friends. Dunbar's work, however, describes average human social networks rather than fixed ceilings. His work remains one of the most influential and often-quoted frameworks for understanding the structure of friendship.

Friendology revisits this foundation by asking a different question. Rather than asking how many friends people can maintain, we ask what conditions allow those friendship circles to grow.

Carry Weight

Every friendship is unique, and some relationships require far more effort than others. Friendology introduces the concept of carry weight: the amount of time, planning, emotional energy, and maintenance a relationship requires.

Friends who reciprocate, contribute, initiate, and share relational responsibility have low carry weight because the work of maintaining the relationship is naturally distributed. Other friendships require one person to do most of the organizing, initiating, supporting, or repairing, resulting in high carry weight.

If every person has a finite amount of social time and energy, then the total carry weight of a network may matter more than the number of friends in it. Ten low carry weight friendships could require less effort—and provide greater social benefit—than three high carry weight friendships.

The Three Pillars of Friend Network Growth

The FriendLens framework is built around three pillars that people can intentionally improve: Sources, Time, and Events.

Sources

Sources are the places where people meet new contacts who may eventually become friends. By identifying better sources, the effort required to make new friends drops dramatically, conserving both time and social energy.

Not all sources are equally productive. A casual Meetup where many attendees are primarily seeking romantic partners may produce relatively few lasting friendships. In contrast, a book club, volunteer organization, hobby group, potluck club, or social club attracts people who have made an ongoing commitment to participate and contribute. These environments naturally encourage repeated interactions, reciprocity, and trust, making them far more productive sources of lasting, low carry weight friendships.

Time

Every new friendship requires time, and time is one of the most limited resources in modern life. Since the introduction of the smartphone, researchers have documented declines in face-to-face social interaction, dating, sexual activity, and even childbearing. As more of our attention shifted to screens, less time remained for building and maintaining real-world relationships.

Time, however, is one of the few variables we can intentionally reallocate. By choosing to spend more time with friends and participating in recurring social activities, people naturally increase their capacity to develop and maintain larger, healthier friend networks.

Events

Friendships grow through shared experiences. The more hangouts and events you organize, attend, and actively participate in, the more opportunities you create to meet new people, strengthen existing relationships, and introduce friends to one another.

Events are friendship accelerators. Every gathering creates conversations, repeated interactions, shared memories, and introductions that build familiarity and trust. They expand friendships far more efficiently than one-on-one interactions alone.

The Friendology Formula

We summarize these ideas with a simple model:

Friend Network Growth Potential = (Quality Sources × Friendship Time × Friend Events) ÷ Average Carry Weight

Where:

• Quality Sources are the count engaged per month of effective places where you meet potential friends.

• Friendship Time is the time per month you intentionally devote to building and maintaining relationships.

• Friend Events are the events per month of get togethers with your friends.

• Average Carry Weight is the average effort required to maintain the friendships already in your network on a scale from 1 to 4.

These variables multiply rather than simply add together. Better sources introduce you to more compatible people. More friendship time creates more opportunities to deepen relationships. More events multiply conversations, trust, and introductions. Lower average carry weight allows the same amount of social energy to support more healthy relationships.

For example a friend of mine has 4 quality sources, allocates 20 hours to friends, does 8 friend events per month, and he estimates his average carry weight at 2.

4 X 20 X 8 / 2 = 320 Newton Friend Formula Points (NFFPs) which puts him in the robust friendship growth zone.

As a starting point, Friendology proposes these working ranges:

• Under 100 NFFP: Limited friendship growth potential.

• 101–299 NFFP: Active and healthy friendship engagement.

• Over 300 NFFP: Robust friendship growth potential.

These ranges are hypotheses that Friendology and FriendLens will refine and validate as more people use the framework and contribute real-world data.

Maintaining and Growing

A healthy friend network requires both adding new relationships and occasionally letting go of those that consistently consume far more energy than they return.

Most friendships experience periods when one person needs extra support, and that is a normal part of friendship. Friendology is not advocating abandoning people during difficult seasons. It is concerned with relationships that become chronically one-sided, conflict-filled, or emotionally exhausting despite repeated efforts to improve them.

Reducing the number of chronically high carry weight relationships, people free time and emotional energy to deepen friendships with shared contribution and develop new ones.

Friendology proposes that healthier and larger friend networks are built by improving the quality of friendship sources, investing more time in friendships, engaging more one-on-one and in groups, and cultivating low carry weight relationships.

Dunbar described the average. Friendology explores how to move beyond it.