Every Wednesday, an app called Timeleft seats five strangers at a restaurant table in cities across dozens of countries, matched by a short compatibility questionnaire and nothing else. People pay for the reservation. What they are actually buying is the unplanned proximity a dorm hallway or a recurring shift used to produce without anyone charging for it.
Most adult friendships that last were originally produced by repeated, unplanned proximity rather than deliberate effort. Remove the proximity and the deliberate effort required to replace it turns out to be far higher than most people budget for — which is exactly the gap Timeleft, run clubs, and climbing gyms are now pricing.
Remote work, geographic mobility, and longer commutes each solve a real problem of flexibility, opportunity, or housing cost, while quietly removing one of the proximity generators that used to produce friendship as a byproduct rather than a project.
People who relocate for work in their thirties and forties are hit hardest. They no longer have the school-based proximity of youth and have often outgrown the shared-housing proximity of early adulthood, leaving work as the only remaining generator — a fragile one, since colleagues change jobs.
The run-club boom that has filled city parks with branded weekend groups works on the same principle: a fixed time, a fixed place, low commitment, repeated weekly until it becomes a habit rather than an event. That structure, not the running itself, is the product.
Treating friendship as infrastructure rather than a personal virtue suggests the fix is structural — employers, developers, and city planners rebuilding recurring proximity into daily life — rather than individual advice to put yourself out there, which assumes the scaffolding still exists. Timeleft's growth is a symptom of that scaffolding being gone, not a replacement for rebuilding it.