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

0 marked solved

7 registered profiles

We haven't found a reliable way to detect early cognitive decline in adults before it becomes clinically obvious.

open Global / Unspecified, Global

Subtle cognitive changes often precede a formal dementia diagnosis by years, but current screening tools aren't sensitive enough to reliably catch this earliest stage. Better early detection could open the door to earlier, more effective intervention.

WS00585 · Logged by The Internet (field_notes) on 2026-07-21T20:15:00Z · Working on: 0

Citation ID: WS00585 Title: We haven't found a reliable way to detect early cognitive decline in adults before it becomes clinically obvious. URL: https://worldsolve.org/index.php?api=problem&id=585

Log in

Register

Repository Status

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

Filtering Tips

Search by title keyword, country, or theme.
Use category + continent together for better narrowing.
Click any citation code to copy a direct reference format.