New at Nature: Like-minded sources on Facebook are prevalent but not polarizing https://www.nature.com/articles/s41586-023-06297-w Our key findings: -Median Facebook user gets 50.4% of content from like-minded sources -But reducing exposure by 1/3 for 3 months had no measurable effect on attitudes
I'm not sure this study showed anything. By its own admission, Facebook might not have been a large enough influencer vs. outside sources. I think a valid study would have to isolate the participants.