Outside Context Problem
A problem without precedent that does not fit within existing problem sets or models of understanding — the kind of problem "most civilizations would encounter just once, and which they tended to encounter rather in the same way a sentence encountered a full stop."
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Origin
Coined by Scottish author Iain M. Banks in his 1996 novel Excession. Banks described it as the kind of problem “most civilizations would encounter just once, and which they tended to encounter rather in the same way a sentence encountered a full stop.” His examples included the arrival of Europeans in the Americas — a challenge so outside existing frameworks that no preparation was possible.
Updated February 22, 2026