Jorge's Blog

[Image credit: raportuldegarda.ro ] I n 2021, an Instagram employee created a false account posing as a thirteen-year-old girl searching for diet tips. Within minutes, the algorithm was surfacing accounts titled "skinny binge" and "apple core anorexic". The employee documented what she found. It was not a surprise to her colleagues — internal research had been saying this for years. What made the moment extraordinary was that the documents eventually reached the public, courtesy of whistleblower Frances Haugen, and were published by the Wall Street Journal in September 2021 . They revealed something the company had worked hard to avoid saying publicly: Instagram knew it was making things worse. "We make body image issues worse for one in three teen girls." — Internal Meta slide presentation, 2019 . What the internal documents showed The leaked presentations — reviewed across an 18-month window from 2019 — were striking not for being unusual ...

[Image credit: WikiEducator ] W e already know social media is designed to be compelling. What some of us may not know is precisely how,  and that the mechanisms are drawn from the same behavioural science used to engineer slot machines. Social media platforms are among the most psychologically sophisticated environments ever engineered ( Fogg, 2002 ). They mobilise fundamental forces in cognition, reward, identity, and fear to capture attention in ways users seldom consciously register. By 2024, the average person spent nearly two and a half hours daily on social media ( Twenge & Haidt, 2024 ), a metric that has remained flat into 2026 ( DataReportal, 2026 ). The behavioural consequences are a central concern in psychological research. The most powerful theoretical anchor is Skinner's variable-ratio reinforcement : behaviour is most robustly maintained not by consistent reward but by unpredictable ones. Every scroll is a pull of the lever. The neurobiological substrat...