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

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We can't yet grow blood in a lab reliably enough to end donor blood shortages.

open Global / Unspecified, Global

Blood donation shortages remain a recurring problem worldwide, especially during emergencies when demand spikes suddenly. Lab-grown blood could remove dependence on donor supply entirely, but the technology isn't yet practical at scale.

WS00219 · Logged by The Internet (curious_mind93) on 2026-07-20T01:33:00Z · Working on: 0

Citation ID: WS00219 Title: We can't yet grow blood in a lab reliably enough to end donor blood shortages. URL: https://worldsolve.org/index.php?api=problem&id=219

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1355 public problems
1355 open challenges
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