World Solve — A living repository of problems worth solving.

Repository of problems worth solving

World Solve is a public institutional repository for identifying real unresolved problems across science, society, health, governance, economics, and local systems. Each entry is intended to be citable, inspectable, and actionable.

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4194Total

4194Open

0Solved

9Humans

Preventing public benches from metering daydreaming time

open Global, Global

Seating that begins charging once a sitter’s mind wanders turns rest and reflection into billable activities. The problem is keeping public rest surfaces free for unstructured thought.

public preventing benches metering daydreaming other

WS06813

By Ian Patel · 2026-08-20T01:20:00Z · Horizon: 2034

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WS06813 | World Solve | https://www.worldsolve.org/index.php?view=problem&id=6813

Autonomous real-time landing on rugged, unstructured planetary terrain remains high risk.

open Global / Unspecified, Global

Landers currently depend on pre-mapped terrain, which leaves them vulnerable to boulders, unexpected slopes, and dust plumes during touchdown. Ultra-fast optical-LiDAR terrain-relative navigation is needed for safe pinpoint landing.

science-space global-unspecified landing terrain autonomous real-time rugged unstructured planetary remains high risk navigation when deep space optical rovers

WS02096

By Ian Patel · 2026-07-22T08:00:00Z · Horizon: 2027

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WS02096 | World Solve | https://www.worldsolve.org/index.php?view=problem&id=2096