On Simmel, distance, and why some of the most valuable product interactions come from people who are near enough to matter and far enough to see clearly
Product teams spend a lot of time thinking about the user, the creator, the customer, the admin, the moderator, the buyer, the seller, the manager, and the teammate. They spend much less time thinking about the stranger.
That is a miss, because many of the most valuable product interactions depend on people who are not intimate members of our core social world. They are close enough to matter, but distant enough to bring in new information, different judgment, or less compromised perspective.
Georg Simmel's writing on the stranger is useful precisely because it refuses to treat distance as a defect. Distance can be productive. It can create a form of objectivity, novelty, or mobility that insiders often cannot provide.
The stranger occupies an interesting position: not fully outside, not fully inside. That makes certain kinds of exchange possible. A stranger can often broker, compare, recommend, observe, or reveal things that would be harder within tightly bonded groups.
Marketplaces depend on this. So do review systems, expert communities, weak-tie recommendations, many types of matching products, and a surprising amount of knowledge work online. These systems are not only helping known people coordinate with one another. They are creating useful contact with socially distant people.
That is one reason weak ties matter so much for opportunity. The person who changes your trajectory is often not your closest friend. It is someone connected enough to be relevant and distant enough to sit in a different cluster of information.
Products often make one of two mistakes here. They either try to force intimacy where distance is actually the source of value, or they remove too much structure and end up with anonymous chaos instead of useful difference.
A professional network works because it preserves a productive form of light connection. A review platform works when it makes a stranger's judgment legible and interpretable rather than pretending that familiarity is the only source of trust. A marketplace works when it creates enough safety and accountability for exchange without pretending buyer and seller are members of one coherent community.
That is why I think the stranger is a product role, not just a sociological curiosity. Some systems grow, learn, and distribute opportunity precisely because they make it possible for people to benefit from others who are not part of their immediate social circle.
Once you start seeing the stranger as a role, several product questions sharpen. Are we helping users reach only the people they already know, or also people who know something different? Are we preserving the useful parts of social distance while containing the risk? Are we designing for discovery, brokerage, and mobility, or only for comfort inside the existing graph?
These are not abstract questions. They shape recommendation systems, review design, creator discovery, professional networking, community onboarding, and even AI products that increasingly play advisory or companion roles. The right amount of distance can increase honesty, novelty, and usefulness. Too little structure turns that distance into noise or harm.
This is one reason I see this essay as a cousin to Weak Ties Are a Growth Strategy. Weak ties are one practical expression of the stranger's value. The stranger is the broader social role that helps explain why those ties matter at all.
Product thinking gets stronger when it stops assuming that value lives only in intimacy, familiarity, and stronger connection. Some of the most important design work is about making social distance usable.