with a mere ten “likes” as input his model could appraise a person’s character better than an average coworker. With seventy, it could “know” a subject better than a friend; with 150 likes, better than their parents. With 300 likes, Kosinski’s model could predict a subject’s answers better than their partner. With even more likes it could exceed what a person thinks they know about themselves.
The world has been turned upside down. The Brits are leaving the EU; Trump rules America. And in Stanford the Polish researcher Michal Kosinski, who indeed tried to warn of the danger of using psychological targeting in a political setting, is still getting accusatory emails. “No,” says Kosinski quietly, shaking his head, “this is not my fault. I did not build the bomb. I just showed that it was there.”
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