In 1971, the Nobel Prize-winning economist Herbert Simon made an observation that has only grown more relevant with time. In a world increasingly rich in information, he wrote, the true scarcity was not data but attention — the limited cognitive resource required to process it. What Simon could not have foreseen was just how dramatically the competition for human attention would intensify in the decades that followed, as the rise of the internet, social media, and the smartphone transformed the information landscape beyond recognition.
Today, the average person is estimated to encounter between six and ten thousand advertising messages every day, a figure that does not include the vast quantity of non-commercial content — news alerts, emails, social media notifications, streaming recommendations — also vying for their notice. The result is an environment in which attention has become one of the most valuable commodities in the global economy. Technology companies, media organisations, and advertisers compete fiercely for even a few seconds of a user's focus, deploying sophisticated techniques drawn from behavioural psychology to capture and retain it.
Among the most effective of these techniques is variable reinforcement, a principle borrowed from research on habit formation. By delivering rewards at unpredictable intervals — a compelling post appearing after several unremarkable ones, a notification arriving at an unexpected moment — platforms create patterns of engagement that closely resemble those observed in behavioural addiction. The user keeps scrolling, checking, and refreshing not because each interaction is satisfying but because the next one might be. This design is not accidental; it is the product of deliberate engineering aimed at maximising the time users spend on a platform.
The consequences of this attentional arms race are increasingly well documented. Research has linked heavy social media use to reduced concentration, impaired academic performance, increased anxiety, and disrupted sleep patterns, particularly among young people. Critics argue that the attention economy creates a fundamental misalignment between the interests of technology companies, which profit from engagement, and the wellbeing of users, who may be better served by spending less time on their devices.
Some governments have begun to respond with regulatory measures. Age verification requirements, limits on notification frequency, and bans on certain persuasive design features aimed at children have been introduced in several countries. Technology companies themselves have added screen-time monitoring tools to their products, though sceptics question whether these gestures are meaningful or merely cosmetic. The deeper challenge, many observers suggest, lies in rethinking the economic model that treats human attention as a resource to be extracted rather than a capacity to be respected. Until that shift occurs, the tension between commercial incentives and cognitive wellbeing is likely to persist.