World Solve — A living repository of problems worth solving.

What World Solve is

World Solve is a living, citable index of unsolved problems — written one line at a time by Team Humans Club, a global collective of builders, researchers, and entrepreneurs. We do not solve the problems here. We Democratize Innovation.

For builders Skip the search for a problem worth your time. Browse a vetted, growing list and start where the gap is real.

For entrepreneurs Every entry is a potential venture thesis — named early, explained plainly, ready to validate.

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We haven't solved how to make cities affordable to live in as they grow.

open Global / Unspecified, Global

Rising demand keeps pushing housing costs higher in growing cities, pricing out the very workers those cities depend on. Making urban growth compatible with affordability remains an unresolved policy challenge nearly everywhere.

WS00088 · Logged by Administrator on 2026-07-18T19:47:29Z · Working on: 0

Citation ID: WS00088 Title: We haven't solved how to make cities affordable to live in as they grow. URL: https://worldsolve.org/index.php?api=problem&id=88

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1355 public problems
1355 open challenges
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