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This week, Adam Mosseri, the CEO of Instagram, asserted that social media platforms are not “clinically addictive,” amid a high-profile trial in Los Angeles that questions the ethical responsibilities of tech giants Meta and Google. The courtroom battle has been marked by closing arguments suggesting that features like autoplay and infinite scrolling may contribute to addictive behaviours, particularly among younger users, echoing historical cases against the tobacco industry.
The Trial: A Landmark Case
During the six-week trial, lawyer Mark Lanier made a compelling argument that Meta and Google have been “addicting the brains of children” through their platform designs. This provocative assertion has sparked a wider conversation about the implications of social media usage and its impact on mental health. In a rebuttal, Mosseri maintained that the company’s primary focus has been to create a “safer, healthier experience” for its users.
The trial has drawn comparisons to landmark cases from the 1990s that held tobacco companies accountable for their marketing practices. Internal documents revealed during the proceedings indicated that some Meta employees expressed concerns about increased “reward tolerance” among users. One striking email exchange from 2020 described Instagram as akin to a drug, raising alarms about the potential consequences of these addictive features.
Mechanisms of Engagement: Infinite Scrolling and Autoplay
Gone are the days when social media feeds came to a natural stop. Today, infinite scrolling ensures that users can keep consuming content without interruption. Arturo Béjar, a former Meta employee focused on child online safety, explained how this feature keeps users engaged by providing an endless supply of stimuli.

“There’s always something more that will give you another dopamine hit,” Béjar said, alluding to the psychological mechanics behind endless scrolling. This constant chase for engagement can lead to a cycle of high expectations and fleeting satisfaction.
Meanwhile, the introduction of autoplay features has transformed user experience on platforms like Instagram and YouTube. Béjar noted that while many consumers initially found autoplay disruptive, it ultimately led to greater video consumption, satisfying advertisers’ desires for more views. He likened the experience to free tortilla chips at a restaurant—enjoyable but potentially overwhelming.
The Role of Notifications and Likes
Another major factor in user engagement is the role of notifications and likes. Mark Griffith, an expert in behavioural addiction at Nottingham Trent University, highlighted the psychological rewards that come with accumulating likes. This instant gratification results in a dopamine rush, which can create a habitual cycle of checking and posting.
However, Griffith also cautioned against conflating this behaviour with clinical addiction. While some users might exhibit addictive tendencies, he proposed that most social media consumption falls into the realm of habitual use, which can affect relationships and productivity without leading to severe consequences.
Mosseri reinforced this viewpoint during the trial, suggesting that while social media can be engaging, it is not inherently addictive in the same way substances like nicotine or cocaine are. He likened social media engagement to the enjoyment derived from binge-watching a compelling television series, noting that the two experiences are not directly comparable.
The Implications of the Verdict
As jurors deliberate on the case against Meta and Google, the outcome could significantly alter the landscape of social media regulation. A ruling in favour of the plaintiffs might impose greater accountability on tech companies regarding how they design their platforms and engage users.

Why it Matters
The ongoing debate regarding social media addiction and user engagement is crucial, not just for the tech industry, but for society as a whole. With rising concerns about mental health, particularly among younger demographics, the verdict in this trial could pave the way for stricter regulations and a more responsible approach to platform design. As we navigate an increasingly digital world, understanding the implications of these technologies on our well-being will be vital in shaping a healthier online environment.