> I’m also reminded of the experiment that Facebook ran on its users to try to make them depressed. Modifying the news feed algorithm in a controlled way to figure out if they could make users fall into a depression or not.

Study: Experimental evidence of massive-scale emotional contagion through social networks - https://www.pnas.org/doi/full/10.1073/pnas.1320040111 | https://doi.org/10.1073/pnas.1320040111

Reporting:

https://www.theguardian.com/technology/2014/jun/29/facebook-...

https://www.nytimes.com/2014/06/30/technology/facebook-tinke...