This is unsurprising. It was claimed that the algorithms developed by Cambridge Analytica and FaceBook during the Brexit campaign and the American 2016 election

This is unsurprising. It was claimed that the algorithms developed by Cambridge Analytica and FaceBook during the Brexit campaign and the American 2016 election were able to predict behavior better than could friends or spouse: https://www.amazon.com/Mindf-Cambridge-Analytica-Break-America/dp/1984854631/ref=monarch_sidesheet https://www.amazon.com/Mindf-Cambridge-Analytica-Break-Ameri...