As we all comb through Meta's internal docs, released via the lawsuits, it's fun to discover that
@jean_twenge and I were getting under Meta's skin by 2019. See the screenshot below, from:
drive.google.com/file/d/1sWR…
They then ran their own RCT to show that Jean and I were wrong, but oops, they found that when people were randomly assigned to quit Insta or FB for a week, their mental health improved.
They called it "Project Mercury."
It is study 6.2 at
metasinternalresearch.org/
They found that those who stopped using Facebook for a week "reported lower feelings of depression, anxiety, loneliness, and social comparison"
Their own researchers (all of whom had Ph.Ds) concluded that: “the Nielsen study does show causal impact on social comparison.”
So whenever you hear the Meta talking point that the evidence is "just correlational," or that there is "no evidence of causality," know that this is not true, and they have known it's not true since 2019.
Please check out the other 30 internal Meta studies we found and catalogued at
metasinternalresearch.org/
Also, there is SO MUCH additional academic research demonstrating causality since 2019:
osf.io/xsje9/files/hmf8e