He explained that when Facebook was being developed the objective was: “How do we consume as much of your time and conscious attention as possible?” It was this mindset that led to the creation of features such as the “like” button that would give users “a little dopamine hit” to encourage them to upload more content.

“It’s a social-validation feedback loop … exactly the kind of thing that a hacker like myself would come up with, because you’re exploiting a vulnerability in human psychology.”