Well, the truth is somewhere in the middle. See: https://www.forbes.com/sites/kashmirhill/2012/02/16/how-target-figured-out-a-teen-girl-was-pregnant-before-he

Well, the truth is somewhere in the middle. See: https://www.forbes.com/sites/kashmirhill/2012/02/16/how-target-figured-out-a-teen-girl-was-pregnant-before-her-father-did/?sh=598a9c396668 https://www.forbes.com/sites/kashmirhill/2012/02/16/how-targ... https://www.nytimes.com/2012/02/19/magazine/shopping-habits.html https://www.nytimes.com/2012/02/19/magazine/shopping-habits.... and https://www.kdnuggets.com/2014/05/target-predict-teen-pregnancy-inside-story.html https://www.kdnuggets.com/2014/05/target-predict-teen-pregna...