Small feed changes on X boost political polarization.

A week of political content on X can shift views as much as three years normally would.

Why it matters

  • Shows how social media algorithms can significantly influence political views and division in a very short time.

By the numbers

  • Over 1,000 users participated in the study.
  • Affective polarization increased by the equivalent of three years in just one week.
  • 8 in 10 American adults believe Republicans and Democrats can't agree on basic facts.
  • More than half of people in the UK see political differences as dangerous for society.

The big picture

  • Social media platforms like X have a powerful influence on political polarization.
  • Small changes in the feed can have significant effects on users' feelings towards the other side.
  • Reducing divisive content could decrease political animosity.

What they're saying

  • Some suggest that people should get off social media entirely.
  • Others point out that this isn't a new phenomenon, referencing Cambridge Analytica.

Caveats

  • The study was conducted during the 2024 US presidential election, which might have influenced the results.
  • Most users didn't notice the changes in their feed, but the effects were still significant.

What’s next

  • It would be interesting to see if social media platforms take steps to reduce divisive content, even if it might reduce engagement.