Can We Fix Social Media? Testing Prosocial Interventions using Generative Social Simulation

Fuente: arXiv
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Auteurs principaux: Larooij, Maik, Törnberg, Petter
Format: Preprint
Publié: 2025
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author Larooij, Maik
Törnberg, Petter
author_facet Larooij, Maik
Törnberg, Petter
contents Social media platforms have been widely linked to societal harms, including rising polarization and the erosion of constructive debate. Can these problems be mitigated through prosocial interventions? We address this question using a novel method - generative social simulation - that embeds Large Language Models within Agent-Based Models to create socially rich synthetic platforms. We create a minimal platform where agents can post, repost, and follow others. We find that the resulting following-networks reproduce three well-documented dysfunctions: (1) partisan echo chambers; (2) concentrated influence among a small elite; and (3) the amplification of polarized voices - creating a 'social media prism' that distorts political discourse. We test six proposed interventions, from chronological feeds to bridging algorithms, finding only modest improvements - and in some cases, worsened outcomes. These results suggest that core dysfunctions may be rooted in the feedback between reactive engagement and network growth, raising the possibility that meaningful reform will require rethinking the foundational dynamics of platform architecture.
format Preprint
id arxiv_https___arxiv_org_abs_2508_03385
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Can We Fix Social Media? Testing Prosocial Interventions using Generative Social Simulation
Larooij, Maik
Törnberg, Petter
Social and Information Networks
Computers and Society
Social media platforms have been widely linked to societal harms, including rising polarization and the erosion of constructive debate. Can these problems be mitigated through prosocial interventions? We address this question using a novel method - generative social simulation - that embeds Large Language Models within Agent-Based Models to create socially rich synthetic platforms. We create a minimal platform where agents can post, repost, and follow others. We find that the resulting following-networks reproduce three well-documented dysfunctions: (1) partisan echo chambers; (2) concentrated influence among a small elite; and (3) the amplification of polarized voices - creating a 'social media prism' that distorts political discourse. We test six proposed interventions, from chronological feeds to bridging algorithms, finding only modest improvements - and in some cases, worsened outcomes. These results suggest that core dysfunctions may be rooted in the feedback between reactive engagement and network growth, raising the possibility that meaningful reform will require rethinking the foundational dynamics of platform architecture.
title Can We Fix Social Media? Testing Prosocial Interventions using Generative Social Simulation
topic Social and Information Networks
Computers and Society
url https://arxiv.org/abs/2508.03385