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It is almost midnight, and you promised yourself an hour ago that you would go to sleep. Instead, you are still lying in the dark, scrolling through videos you will not even remember tomorrow. If this sounds familiar, you are not weak: some of the world's smartest people are paid to keep you scrolling.
In 2006, a designer named Aza Raskin invented the infinite scroll, a feature that loads new content endlessly so that the page never asks you to stop. Years later, he admitted that he regretted it and compared such features to “behavioural cocaine” sprinkled all over the screen. A page with a bottom gives your brain time to decide whether to continue; an endless feed quietly takes that decision away from you.
Other tricks come straight from the casino. Tristan Harris, a former design ethicist at Google, says that checking your phone is like playing a slot machine. You pull down to refresh the screen, and then you wait to see what you have won. Sometimes there is nothing, sometimes there is an exciting message, and it is this uncertainty that makes the game so difficult to quit. Psychologists call this pattern “variable rewards”, and designers use it because it makes people repeat an action again and again.
None of this happens by accident, because your attention is the product being sold. Most social apps are free to use, so they make money by showing you advertisements, and the longer you stay, the more they earn. That is why notifications glow red, videos start playing automatically, and the feed never lets you reach the end.
According to DataReportal, the typical internet user now spends about two hours and twenty minutes a day on social media, which adds up to more than a month of scrolling every year. You cannot change the way these apps are designed, but you can understand the design, and that changes your position in the game. The next time your thumb starts moving on its own, ask yourself one simple question: do I really want to be here, or did a machine simply invite me in?