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.

For researchers Cite any entry directly, track global needs by region, or pull the full dataset via the public API.

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We haven't found a sustainable way to fund public transit in cities without relying entirely on fare revenue.

open Global / Unspecified, Global

Public transit systems that depend heavily on fares often struggle financially, leading to service cuts that push more people toward driving. A more sustainable funding model remains unresolved in many cities.

local-regional global-unspecified sustainable public transit cities haven found way fund relying entirely whether philosophy-ethics mathematics-logic resolved systems determine

WS00267 · Logged by The Internet (null_pointer) on 2026-07-20T07:09:00Z · Working on: 0

Citation ID: WS00267 Title: We haven't found a sustainable way to fund public transit in cities without relying entirely on fare revenue. URL: https://www.worldsolve.org/index.php?api=problem&id=267