The political effects of X's feed algorithm
Source: Hacker News
Study Overview
A recent study published in Nature investigates how feed algorithms influence political attitudes. The researchers examined users who switched from a reverse‑chronological social media algorithm to X’s algorithm.
Germain Gauthier, Roland Hodler, Philine Widmer and Ekaterina Zhuravskaya in Nature

Key Findings
- Users who moved to X’s algorithm were 4.7 percentage points more likely to prioritize policy issues favored by Republicans, such as inflation, immigration, and crime.
- They were also 5.5 percentage points more likely to view investigations into former President Trump as unacceptable, describing them as contrary to the rule of law, undermining democracy, an attempt to stop the campaign, and an attack on people like themselves.
“[…] were 4.7 percentage points more likely to prioritize policy issues considered important by Republicans, such as inflation, immigration and crime. They were also 5.5 percentage points more likely to believe that the investigations into Trump are unacceptable, describing them as contrary to the rule of law, undermining democracy, an attempt to stop the campaign and an attack on people like themselves.”
- Even after the algorithm was switched off, users’ views did not revert, indicating a lingering effect.
- The persistence appears partly due to users following more conservative influencers after exposure to the algorithm.
Implications
These results provide quantitative evidence that feed algorithms can shape political opinions to a degree that could influence election outcomes. Compared to other platforms, X’s algorithm may be especially prone to political manipulation.
The findings suggest a need for:
- Increased funding for open protocols that decentralize algorithmic ownership.
- Development of open platforms offering users a choice of algorithm and provider.
- Greater algorithmic transparency across the information ecosystem.
For the full study, see the original article: Nature – Algorithmic Influence on Political Attitudes