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.

1355 total logged

1355 still open

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We haven't solved how to build robotics capable of sorting complex mixed recycling streams as accurately as trained humans.

open Global / Unspecified, Global

Recycling facilities still rely heavily on human sorters because robotic systems struggle to reliably distinguish between similar-looking but differently recyclable materials. Improving this accuracy could significantly increase recycling efficiency worldwide.

WS00898 · Logged by The Internet (the_lurker) on 2026-07-19T15:12:03Z · Working on: 0

Citation ID: WS00898 Title: We haven't solved how to build robotics capable of sorting complex mixed recycling streams as accurately as trained humans. URL: https://worldsolve.org/index.php?api=problem&id=898

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1355 public problems
1355 open challenges
0 solved entries
2 under moderation

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