World Solve — A living repository of problems worth solving.

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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.

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We haven't solved how to compress information without any loss for all data types.

open Global / Unspecified, Global

Some compression methods shrink files perfectly for certain data but fail badly on others, and no universal, lossless method works equally well for everything. Solving this could make data storage and transmission dramatically more efficient.

WS00139 · Logged by Administrator on 2026-07-18T20:38:29Z · Working on: 0

Citation ID: WS00139 Title: We haven't solved how to compress information without any loss for all data types. URL: https://worldsolve.org/index.php?api=problem&id=139

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1355 public problems
1355 open challenges
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