{
  "id": "necessity.condition",
  "term": "necessity",
  "sense": "condition",
  "pos": "noun",
  "status": "review",
  "level": 18,
  "arena": "abstract",
  "domain": "window",
  "style": "window",
  "definition": "a parameter whose window is narrower than alternatives, such that no other value allows the thing to persist",
  "folk_gloss": null,
  "emergence": {
    "components": [
      "parameter.condition",
      "window.range",
      "narrow.spatial",
      "persist.continue",
      "allow.permission",
      "value.worth"
    ],
    "interaction": "The parameter's range is constrained so tightly that only specific values permit persistence, distinguishing it from broader alternatives.",
    "novel_properties": [
      "constraining threshold",
      "exclusivity of persistence",
      "comparative narrowness"
    ]
  },
  "examples": [
    {
      "text": "The International Space Station maintains precise orbital altitude to avoid atmospheric drag-induced decay.",
      "domain": "engineering"
    },
    {
      "text": "Human hemoglobin functions only within blood pH 7.35–7.45, or oxygen transport fails.",
      "domain": "biology"
    },
    {
      "text": "The 2008 US dollar held value only as long as Federal Reserve liquidity exceeded $1.5 trillion in credit swaps.",
      "domain": "economics"
    }
  ],
  "relations": [],
  "used_by": [],
  "forms": [
    "necessity"
  ],
  "closed": false,
  "provenance": {
    "author": "retrofit:qwen/qwen3-235b-a22b-2507",
    "date": "2026-07-29",
    "confidence": 0.8,
    "sources": [
      "Sample/abstract-concepts-as-ranges.md"
    ],
    "reconciled": {
      "by": "openrouter:qwen/qwen3-235b-a22b-2507",
      "date": "2026-07-31",
      "changed": "components",
      "note": "Removed 'windows.opening' (L11) as it is a physical structure metaphor not semantically involved; retained 'allow.permission' and 'value.worth' as they are essential to the logic of permitting persist"
    }
  },
  "canonical": "https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-necessity.condition"
}