{
  "id": "niche.parameter-space",
  "term": "niche",
  "sense": "parameter-space",
  "pos": "noun",
  "status": "review",
  "level": 18,
  "arena": "general",
  "domain": "window",
  "style": "window",
  "definition": "A region of parameters where one system's window is open and its neighbours' are not.",
  "folk_gloss": null,
  "emergence": {
    "components": [
      "window.range",
      "parameter.condition",
      "wall.range-end",
      "drift.aimless",
      "boundary.limit",
      "open.spatial",
      "region.spatial",
      "system.organized"
    ],
    "interaction": "Each system has a parameter window defined by boundary limits; when one system's window is open at a parameter value where neighbouring systems' windows are closed, a persistent state emerges in the space between closing walls.",
    "novel_properties": [
      "unshared persistence",
      "isolated parameter window",
      "emergent occupancy"
    ]
  },
  "examples": [
    {
      "text": "The L4 and L5 Lagrange points in the Earth-Moon system stably trap asteroids while nearby orbits drift away.",
      "domain": "astronomy"
    },
    {
      "text": "In the human gut, Bacteroides thetaiotaomicron thrives on complex polysaccharides absent in blood, where it cannot survive.",
      "domain": "microbiology"
    },
    {
      "text": "The Atacama Large Millimeter Array operates at millimeter wavelengths blocked elsewhere by atmospheric water absorption.",
      "domain": "astronomy"
    }
  ],
  "relations": [],
  "used_by": [],
  "forms": [
    "niche"
  ],
  "closed": false,
  "provenance": {
    "author": "retrofit:qwen/qwen3-235b-a22b-2507",
    "date": "2026-07-29",
    "confidence": 0.8,
    "sources": [
      "Sample/hundred-words-six-terms.md"
    ],
    "reconciled": {
      "by": "openrouter:qwen/qwen3-235b-a22b-2507",
      "date": "2026-07-31",
      "changed": "components",
      "note": "Added missing constitutive concepts (open.spatial, region.spatial, system.organized) to align record with definition. Definition remained correct and concise. Removed vestigial reference to 'windows.o"
    }
  },
  "canonical": "https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-niche.parameter-space"
}