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  "retrievedAt": "2026-07-16T18:20:26.330Z",
  "createdAt": "2026-05-09T07:10:03.715Z",
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    "text": "Cross-national divergence remains informative because US-specific experiments that should capture algorithm-structure interactions also find null effects on affective polarization."
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      "text": "Guess et al. (2023), Nyhan et al. (2023), and Gauthier et al. (2026) all tested algorithmic effects within the US political context and found null effects on affective polarization.",
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