Repeated Coordination, Decay
The Friendship Drift
The Friendship Drift is a Repeated Coordination and Decay scenario. The core lesson: Friendship entropy is real, but a single intentional reconnection can restart the clock. A friend you were close to 10 years ago has slowly drifted. You exchange occasional texts. DecisionPlay maps the players, payoffs, and equilibrium dynamics that shape how this situation typically resolves.
The situation
A friend you were close to 10 years ago has slowly drifted. You exchange occasional texts. Neither of you has made the move to actually meet. The friendship feels like it's dying in slow motion.
Background
Research on adult friendship finds that close relationships require regular shared experience to maintain, typically at least monthly contact for 'close friend' classification. Without it, even deep friendships decay on roughly a 7-year schedule. The barrier is rarely animosity; it's usually symmetric reluctance to make the first move, compounded by each party assuming the other is less interested.
What this reveals
Friendship entropy and the reconnection restart
Adult friendship maintenance is a coordination problem: both parties want the relationship but each party systematically underestimates how much the other wants it. The result is symmetric paralysis, each waiting for the other to initiate, each interpreting the lack of initiation as lack of interest. Research finds that close friendships require contact roughly monthly to maintain 'close friend' status, and decay to 'acquaintance' within 7 years without it. But a single intentional reconnection can restart the clock.
How to counter it: The person you've been meaning to reach out to probably thinks the same thing about you. One of you has to go first. It doesn't matter who. Go first.
A question to sit with
Name three people you were close to 10 years ago who you never see. Was the drift inevitable or avoidable?
Frequently asked questions
- What game theory concept does The Friendship Drift illustrate?
- The Friendship Drift illustrates Repeated Coordination, Decay. Friendship entropy is real, but a single intentional reconnection can restart the clock.
- What is the situation in The Friendship Drift?
- A friend you were close to 10 years ago has slowly drifted. You exchange occasional texts. Neither of you has made the move to actually meet.
- What does The Friendship Drift reveal about how people decide?
- Friendship entropy and the reconnection restart. Adult friendship maintenance is a coordination problem: both parties want the relationship but each party systematically underestimates how much the other wants it. The result is symmetric paralysis, each waiting for the other to initiate, each interpreting the lack of initiation as lack of interest. Research finds that close friendships require contact roughly monthly to maintain 'close friend' status, and decay to 'acquaintance' within 7 years without it. But a single intentional reconnection can restart the clock.
- How do you avoid the trap in The Friendship Drift?
- The person you've been meaning to reach out to probably thinks the same thing about you. One of you has to go first. It doesn't matter who. Go first.
- What is the research behind The Friendship Drift?
- Research on adult friendship finds that close relationships require regular shared experience to maintain, typically at least monthly contact for 'close friend' classification. Without it, even deep friendships decay on roughly a 7-year schedule. The barrier is rarely animosity; it's usually symmetric reluctance to make the first move, compounded by each party assuming the other is less interested.
- How long does The Friendship Drift take to play?
- About 8 min, at intro difficulty, across 4 decision points. It runs in your browser with no account and no sign-in.
Keep exploring
More Personal Decisions scenarios, or browse all scenarios. New to this? Start with how DecisionPlay works or the game theory glossary.
Topics: friendship, coordination, social-capital, habit