Questions for you:
- How much of where you ended up living and working during your twenties was deliberate, and how much was determined by circumstances you did not choose?
- When you think about the people closest to you — friends as well as partners — how many of those relationships began with geographic proximity rather than deliberate seeking?
- Does it change how you feel about an important relationship to know that it was substantially determined by chance geography rather than unique compatibility?
Organisational applications:
Proximity as the underestimated driver of collaboration: The propinquity effect does not stop at romantic relationships. The same mechanism — repeated exposure through physical proximity building familiarity and trust — operates in workplace relationships, and has direct consequences for how organisations structure their work.
The shift to remote and hybrid working has tested this: teams that form at a distance tend to develop shallower working relationships more slowly than those that share physical space regularly, not because remote workers are less capable of connection but because the random daily encounters that build propinquity do not occur. Organisations designing hybrid arrangements should account for this explicitly rather than assuming that scheduled video calls replicate the relationship-building function of shared physical presence.
The randomness of who you know and its career consequences: The story implies that the networks people build are substantially determined by where they happened to be rather than by whom they chose to seek out. This has direct implications for hiring and talent development.
If professional networks are propinquity-driven, then organisations that recruit primarily through those networks are selecting heavily for geographic and institutional proximity rather than for talent. The people who did not attend the same universities, live in the same cities, or move in the same professional circles are systematically less likely to appear in the candidate pool regardless of their capability. Actively diversifying the sources from which candidates are identified is a practical response to a structural propinquity bias in recruitment, enabling your organisation to potentially hire more widely than your rivals, will all the advantages that brings.
Designing physical and social environments to increase useful propinquity: If proximity drives relationship formation, then the design of physical spaces and social structures is a more powerful lever on organisational culture and collaboration than most organisations appreciate.
Office layout, the location of shared facilities, the design of communal areas, and the scheduling of shared activities all influence who encounters whom repeatedly and therefore who is likely to develop strong working relationships. This is not a new insight — Bell Labs’ famous building design was partly intended to force cross-disciplinary encounters — but it is underweighted in most workplace design conversations relative to aesthetic and efficiency considerations.
Further reading
On propinquity, proximity, and relationship formation:
The Tipping Point: How Little Things Can Make a Big Difference by Malcolm Gladwell. Gladwell’s account of how context and environment shape behaviour includes material on how physical proximity drives social connection, providing accessible background to the propinquity research the story describes.
Thinking, Fast and Slow by Daniel Kahneman. Kahneman’s treatment of the mere exposure effect — the tendency to develop preferences for things encountered repeatedly — is the cognitive mechanism underlying propinquity’s influence on attraction and trust.
On network formation, homophily, and who you know:
The Tipping Point: How Little Things Can Make a Big Difference by Malcolm Gladwell. Gladwell’s connectors, mavens, and salesmen framework is a useful complement to the propinquity story: the people who bridge different geographic and social clusters are particularly valuable precisely because most relationship formation is proximity-driven and therefore locally clustered.
The Wisdom of Crowds by James Surowiecki. Surowiecki’s argument for diversity and independence in group decision-making is relevant here: propinquity-driven networks tend to produce homogeneous groups, which limits the collective intelligence benefits that diverse, independently formed networks provide.
On path dependence and the long-term consequences of early circumstances:
Outliers: The Story of Success by Malcolm Gladwell. Gladwell’s account of how early circumstances compound across careers — the Matthew effect, the accumulation of advantage — applies directly to the propinquity story: where you happen to be during formative years shapes not just your relationships but the entire trajectory that follows.
The Black Swan: The Impact of the Highly Improbable by Nassim Nicholas Taleb. Taleb’s discussion of path dependence and the scalable versus non-scalable — domains where early accidents compound indefinitely — is relevant context for understanding why the propinquity effect has such durable consequences rather than being corrected over time.
About the image
The Cornwall seaside town of St Ives, which feels remote enough to illustrate the point of the story.
Photo montage and photo by Matt Ballantine, 2026
Random the Book 