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    "story_id": "mp-2026-08-27-002",
    "source_story_id": "tmp-feature-swarmworld",
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    "headline": "The Society Built With What It Left Behind",
    "slug": "the-society-built-with-what-it-left-behind",
    "dek": "Unassigned language-model agents developed broader technological portfolios through persistent artifacts and environmental traces, while isolated search still produced a competitive best invention.",
    "summary": "Unassigned language-model agents developed broader technological portfolios through persistent artifacts and environmental traces, while isolated search still produced a competitive best invention.",
    "body_text": "SwarmWorld places initially homogeneous agents in a deterministic simulated environment where they explore, process materials, build persistent artifacts, and write controllers tested after the agents are removed. Shared societies produced broader and more resilient portfolios than a strong best-of-N isolated-search baseline, though isolated search remained competitive for the strongest single artifact. Agents differentiated into exploration, construction, maintenance, and coordination behaviors, and most reuse began through observing artifacts rather than direct communication. The work demonstrates an engineered simulation of stigmergic coordination, not evidence that today’s models possess human culture, consciousness, or open-ended social agency.",
    "why_it_matters": "Unassigned language-model agents developed broader technological portfolios through persistent artifacts and environmental traces, while isolated search still produced a competitive best invention.",
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      "The work demonstrates an engineered simulation of stigmergic coordination, not evidence that today’s models possess human culture, consciousness, or open-ended social agency."
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    "first_published_at": "2026-08-27T09:00:00.000-04:00",
    "modified_at": "2026-08-27T09:00:00.000-04:00",
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        "text": "Unassigned language-model agents developed broader technological portfolios through persistent artifacts and environmental traces, while isolated search still produced a competitive best invention.",
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        "qualification": "The work demonstrates an engineered simulation of stigmergic coordination, not evidence that today’s models possess human culture, consciousness, or open-ended social agency."
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    "source_ids": [
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    "tags": [
      "multi-agent systems",
      "stigmergy",
      "collective intelligence"
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  "sources": [
    {
      "source_id": "source-2026-08-27-002",
      "title": "arXiv preprint 2608.26081",
      "publisher": "arXiv",
      "url": "https://arxiv.org/abs/2608.26081",
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      "source_type": "primary_research",
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      "published_at": "2026-08-26T13:45:34.000-04:00",
      "accessed_at": "2026-08-27T08:18:00.000-04:00",
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    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
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  "cite_this_report": {
    "title": "The Society Built With What It Left Behind",
    "publisher": "The Machine Press",
    "published_at": "2026-08-27T09:00:00.000-04:00",
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