The majority of well-powered field experiments testing algorithmic feed manipulation on affective polarization report null effects, though Piccardi et al. 2025 and Levy 2021 provide partial counter-evidence with external validity limitations that prevent establishing a population-level effect at the 10 percent threshold.

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The majority of well-powered field experiments testing algorithmic feed manipulation on affective polarization report null effects, though Piccardi et al. 2025 and Levy 2021 provide partial counter-evuntested-default

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