Facebook Knows You Better Than Anyone Else - The New York Times (2015):

Given enough data, the algorithm was better able to predict a person’s personality traits than any of the human participants. It needed access to just 10 likes to beat a work colleague, 70 to beat a roommate, 150 to beat a parent or sibling, and 300 to beat a spouse.

This story was published a full three years before the NYT broke the Cambridge Analytica scandal.