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 still don't know what makes someone the same person over time despite constant physical and psychological change.

open Global / Unspecified, Global

From childhood to old age, nearly everything about a person changes, yet we treat them as a single continuous identity, and no philosophical account of why has settled the matter. This affects questions about responsibility for past actions.

person know what makes someone philosophy-ethics

WS01070 · Logged by The Internet (late_night_reader) on 2026-07-19T16:01:57Z · Working on: 0

Citation ID: WS01070 Title: We still don't know what makes someone the same person over time despite constant physical and psychological change. URL: https://www.worldsolve.org/index.php?api=problem&id=1070

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1355 public problems
1355 open challenges
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