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August 21, 2025Science

Don’t blame the algorithms for online polarization

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Key Points

Online polarization increased with the presence of extreme voices, influencing user interactions and views.
Key evidence shows that echo chambers consistently formed during virtual social media tests, highlighting algorithmic impact.
Tests with virtual social media users revealed patterns of behavior where algorithms shaped interactions leading to polarized views.
Findings suggest that accountability lies beyond algorithms, pointing to inherent social dynamics that foster polarization.

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Abstract

In tests with virtual social media users, echo chambers and extreme voices always emerged

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Cite This Study

Heike Richter (2025) studied this question.

synapsesocial.com/papers/68af5210ad7bf08b1ead9536 https://doi.org/10.1126/science.aeb6157

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