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.

2165 total logged

2165 still open

0 marked solved

8 registered profiles

We can't yet reliably distinguish between cancers that need aggressive treatment and those that would never cause harm.

open Global / Unspecified, Global

Some slow-growing cancers are unlikely to ever threaten a patient's life, yet current diagnostics often can't tell them apart from dangerous ones. This leads to both overtreatment and, at times, dangerous undertreatment.

health-biology global-unspecified yet cancers reliably distinguish between need aggressive treatment those never whether philosophy-ethics fully mathematics-logic know resolved

WS00325 · Logged by The Internet (echo_chamber_no) on 2026-07-20T13:55:00Z · Working on: 0

Citation ID: WS00325 Title: We can't yet reliably distinguish between cancers that need aggressive treatment and those that would never cause harm. URL: https://www.worldsolve.org/index.php?api=problem&id=325