{
  "identifier": "Y55fpvvl",
  "argumentId": "cmoxtnce7065o8cssp18bkbov",
  "permalink": "https://www.isonomia.app/a/Y55fpvvl",
  "version": 1,
  "contentHash": "sha256:d397a629d996bb916bffe65fe19a8fe758cfd377f50ffa0e0d9332bca67045dd",
  "immutablePermalink": "https://www.isonomia.app/a/Y55fpvvl@d397a629d996bb916bffe65fe19a8fe758cfd377f50ffa0e0d9332bca67045dd",
  "isoId": "iso:argument:Y55fpvvl",
  "isoUrl": "https://www.isonomia.app/iso/argument/Y55fpvvl",
  "doi": null,
  "retrievedAt": "2026-08-24T19:46:52.631Z",
  "createdAt": "2026-05-09T04:06:07.999Z",
  "updatedAt": "2026-05-09T04:06:07.999Z",
  "conclusion": {
    "claimId": "cmoxtn7b0065f8css8g717uq7",
    "moid": "7a6e5a221afc764ece3438311ea17bf765b0880c48cb2002b8dc0bdce821cefe",
    "text": "Direct experimental tests of switching from algorithmic to chronological feeds consistently find no significant effect on affective polarization, contradicting the claim that algorithmic amplification of mainstream content drives measurable polarization."
  },
  "premises": [
    {
      "claimId": "cmoxtn8hf065h8cssgdzmtx2m",
      "moid": "9702b9c9f0528fb3231bd536c2cee4027c843353528a157b4427d6733ea4a64e",
      "text": "The Guess et al. (2023) experiment switching approximately 23,000 users from algorithmic to chronological feeds found no significant change in affective polarization despite substantially changing content exposure patterns.",
      "isImplicit": false
    },
    {
      "claimId": "cmoxtn9nt065j8cssr2tz428s",
      "moid": "022ee4292d0eda4ba74453723034025dfd745eeca108510b857415a89ec4be94",
      "text": "The Gauthier et al. (2026) experiment on X found that neither switching the algorithm on nor off significantly affected affective polarization, replicating the null across a different platform.",
      "isImplicit": false
    },
    {
      "claimId": "cmoxtnau8065l8css2u5mq963",
      "moid": "3d312f858fb6936cc5659a3e50e0f49110feb4093e4d2f3814c290b9cdb67788",
      "text": "The Piccardi et al. study recruited only users with at least 5% political posts via Prolific during an extreme political period, making its 2-point effect unrepresentative of standard algorithmic effects on the general population.",
      "isImplicit": false
    }
  ],
  "scheme": {
    "id": "cmoqrms5g000c8c7tqc5hznnp",
    "key": "argument_from_lack_of_evidence",
    "name": "Argument from Lack of Evidence (Negative Evidence)",
    "title": null,
    "canonicalKey": "argument_from_lack_of_evidence",
    "behaviourFingerprint": "f70dd5bed2748b767f634d3c7faa25a2b2b80b7eb3abfaf1c56f2bb2c11cae37",
    "catalogueHealth": {
      "isArgumentPattern": true,
      "isDialogueMeta": false,
      "isTestPlaceholder": false,
      "duplicateOf": null,
      "canonicalKey": "argument_from_lack_of_evidence",
      "clusterTagMissing": false,
      "fingerprintMaterialised": true
    }
  },
  "evidence": [],
  "structuredCitations": [],
  "criticalQuestions": {
    "schemeKey": "argument_from_lack_of_evidence",
    "total": 5,
    "answered": [],
    "partiallyAnswered": [],
    "unanswered": [
      {
        "cqKey": "absence_of_proof_vs_proof_of_absence?",
        "text": "Is the absence of positive evidence strong enough to justify concluding ¬A, or only to justify withholding belief in A?",
        "attackKind": "UNDERCUTS",
        "cqStatusId": "cmoxtneig065u8cssb4hgwejg",
        "schemeKey": "argument_from_lack_of_evidence",
        "premiseType": "ORDINARY",
        "isSchemeRequired": true,
        "inheritedFromParentScheme": false,
        "cqStatusEnum": "OPEN",
        "challenged": false,
        "challengeCount": 0,
        "cqRequiresEvidence": false,
        "cqBurden": "PROPONENT",
        "answerSelfCanonical": false,
        "answerAuthorKind": "HUMAN",
        "status": "open"
      },
      {
        "cqKey": "absence_of_search?",
        "text": "Is the absence of evidence due to absence of investigation rather than to A's being false?",
        "attackKind": "UNDERMINES",
        "cqStatusId": "cmoxtneig065v8cssbvd7zlhb",
        "schemeKey": "argument_from_lack_of_evidence",
        "premiseType": "ORDINARY",
        "isSchemeRequired": true,
        "inheritedFromParentScheme": false,
        "cqStatusEnum": "OPEN",
        "challenged": false,
        "challengeCount": 0,
        "cqRequiresEvidence": false,
        "cqBurden": "PROPONENT",
        "answerSelfCanonical": false,
        "answerAuthorKind": "HUMAN",
        "status": "open"
      },
      {
        "cqKey": "publication_bias?",
        "text": "Could disconfirming or null findings have been suppressed, unpublished, or systematically under-reported (file-drawer / publication bias)?",
        "attackKind": "UNDERMINES",
        "cqStatusId": "cmoxtneig065w8cssqo8bmybr",
        "schemeKey": "argument_from_lack_of_evidence",
        "premiseType": "ORDINARY",
        "isSchemeRequired": true,
        "inheritedFromParentScheme": false,
        "cqStatusEnum": "OPEN",
        "challenged": false,
        "challengeCount": 0,
        "cqRequiresEvidence": false,
        "cqBurden": "PROPONENT",
        "answerSelfCanonical": false,
        "answerAuthorKind": "HUMAN",
        "status": "open"
      },
      {
        "cqKey": "search_adequate?",
        "text": "Has the investigative regime actually been adequate (well-funded, well-powered, well-designed) to detect E if A were true?",
        "attackKind": "UNDERMINES",
        "cqStatusId": "cmoxtneig065x8cssdq3u8ua2",
        "schemeKey": "argument_from_lack_of_evidence",
        "premiseType": "ORDINARY",
        "isSchemeRequired": true,
        "inheritedFromParentScheme": false,
        "cqStatusEnum": "OPEN",
        "challenged": false,
        "challengeCount": 0,
        "cqRequiresEvidence": false,
        "cqBurden": "PROPONENT",
        "answerSelfCanonical": false,
        "answerAuthorKind": "HUMAN",
        "status": "open"
      },
      {
        "cqKey": "weak_signal?",
        "text": "Could A be true but produce only a weak signal that escapes detection at the prevailing statistical thresholds?",
        "attackKind": "REBUTS",
        "cqStatusId": "cmoxtneig065y8cssiblwwn33",
        "schemeKey": "argument_from_lack_of_evidence",
        "premiseType": "ORDINARY",
        "isSchemeRequired": true,
        "inheritedFromParentScheme": false,
        "cqStatusEnum": "OPEN",
        "challenged": false,
        "challengeCount": 0,
        "cqRequiresEvidence": false,
        "cqBurden": "PROPONENT",
        "answerSelfCanonical": false,
        "answerAuthorKind": "HUMAN",
        "status": "open"
      }
    ]
  },
  "schemeInstance": null,
  "confidence": null,
  "dialecticalStatus": {
    "incomingAttacks": 0,
    "incomingSupports": 0,
    "incomingAttackEdges": 0,
    "criticalQuestionsRequired": 5,
    "criticalQuestionsAnswered": 0,
    "criticalQuestionsOpen": 5,
    "standingScore": 0.5,
    "isTested": false,
    "testedness": "untested",
    "standingState": "untested-default",
    "standingDepth": {
      "challengers": 0,
      "independentReviewers": 0,
      "lastChallengedAt": null,
      "lastDefendedAt": null,
      "confidence": "thin"
    },
    "fitnessBreakdown": {
      "total": 0,
      "components": {
        "cqAnswered": {
          "count": 0,
          "weight": 1,
          "contribution": 0
        },
        "supportEdges": {
          "count": 0,
          "weight": 0.5,
          "contribution": 0
        },
        "attackEdges": {
          "count": 0,
          "weight": -0.7,
          "contribution": 0
        },
        "attackCAs": {
          "count": 0,
          "weight": -1,
          "contribution": 0
        },
        "evidenceWithProvenance": {
          "count": 0,
          "weight": 0.25,
          "contribution": 0
        }
      },
      "weights": {
        "cqAnswered": 1,
        "supportEdges": 0.5,
        "attackEdges": -0.7,
        "attackCAs": -1,
        "evidenceWithProvenance": 0.25
      }
    }
  },
  "deliberation": {
    "id": "cmoxod0e103438css5ojh6ae7",
    "title": null
  },
  "author": {
    "id": "156",
    "displayName": "Advocate B (bot)",
    "kind": "HUMAN",
    "aiProvenance": null
  }
}