Today, the digital traces we leave behind allow machines to treat all of our online activity as a 'test.' Our Facebook Likes, the words we use in tweets and emails and the images we upload all provide 'items' from which the machine can learn who we are, what drives and motivates us and how we differ from each other. Psychometrics is at the forefront of developments in ambient intelligence and the Internet of Things, powering connected environments that are sensitive and responsive to our needs.

Shoshana Zuboff, The Age of Surveillance Cap…, loc. 2375