The thought process that went into building these applications . . . was all about: “How do we consume as much of your time and conscious attention as possible?” . . . We need to sort of give you a little dopamine hit every once in a while, because someone liked or commented on a photo or a post or whatever. And that’s going to get you to contribute more content, and that’s going to get you . . . more likes and comments. . . . 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
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