What keeps us scrolling endlessly: the tricks platformsormes use to capture attention, between product design, algorrecommendation algorithms and cognitive mechanisms, explains why attention is transformeing into a rare and disputed resource.
Infinite scrolling seems harmless: a gesture, a thumb, a sequence of contents. Yet behind this apparent confort lies precise engineering, designed to reduce effort and increase session length. In a family, the discrepancy is visible: a teenager absorbed by a stream of short videos, a parent who "just checks two minutes" a news feed. The problem isn't generational. It has to do with the way interfaces and recommendation systems exploit human vigilance in the face of salient signals, particularly when news becomes anxiety-provoking and leads to doomscrolling.
Infinite scrolling and attention economy: the levers that make gestures automatic
The first lever is structural: remove the end. A page that stops force a decision (continue, search, close). An infinite thread, on the other hand, replaces the decision with continuity. The brain saves micro-energy, and the application gains opportunity to expose encore one content, then another. This logic is interwoven with "variable reward": the user doesn't know when the really funny video, the useful information or the expected publication will arrive. This uncertainty fuels the desire for "just one more scroll".
Second lever: minimal friction. Plateformes work on latency, animation and preview so that the transition is almost invisible. Fluid refreshment gives the impression of a natural flow, like water. In the mobile, gestures are optimized: thumb distance, zones of interaction, inertial speed. This is exactly the kind of arbitration described in modern UX practices, with concrete references such as UX/UI design trends for websiteswhich show how an interface can guide attention, sometimes to the detriment of time management.
Third lever: emotional prioritization. The most divisive, shocking or anxiety-provoking content is the quickest to catch on. Doomscrolling, amplified since the Covid-19 crisis, is part of this bias: humans are hard-wired to monitor threats. Repeated exposure triggers the stress response (cortisol, adrenalin); at force, recovery erodes. Research in media psychology, on events such as 9/11 or the Boston bombing, has shown that intensive media consumption can be associated with more stress symptoms, sometimes more than direct exposure to the event. The endless feed transforme alors the news as a continuous stimulus, with no decompression break.
To materialize these levers, a simple grid helps to "see" what the product does to the attention:
| Plate leverforme | Technical mechanism | Observed user effect | Pragmatic countermeasures |
|---|---|---|---|
| End deleted | Invisible pagination, preloading | Sessions lengthen without conscious decision | Limit by timer and fixed time slot |
| Variable reward | Top picks recommendation, score of interest | Compulsive search for "the next good content". | Switch to chronological subscriptions whenever possible |
| Minimum friction | Animations, swipe, autoplay | Fewer breaks, less time to step back | Disable autoplay and previews |
| Emotional salience | Boosting polemical content | Stress, rumination, information fatigue | Filter keywordshide explicit images |
This diagnosis naturally leads to the following question: if these levers are known, how do systems decide precisely what to show, and in which ordre, to keep the scroll going? This is where algorithm comes in, with its highly personalized logic.

Alg1TP5Recommendation algorithms: how platformformes optimize feeds to extend sessions
A performant feed is based not just on "good content", but on measurable signals. Every pause, every rewind, every share, every comment, every viewing time feeds a probabilistic profile. The product objective is not moral, it's metric: increase retention, frequency of return, and depth of consultation. Plateformes therefore build models that predict the probability of keeping the user active for the next piece of content.
A case in point helps us understand. A fictitious SME, Atelier Lumen, launches a range of eco1TP5responsible accessories. The brand publishes a short "behind-the-scenes" video. If the audience watches to the end, comments and clicks on other similar videos, the algorithme interprets an affinity "craftsmanship + ecology + behind-the-scenes". The recommendation adjusts, and the feed fills up with related, sometimes more extreme content: accusations of greenwashing, anxiety-inducing climate news, polemics. The transition from interest to tension happens quickly, because tension holds. Hence the importance, on the brand side, of producing formats that attract without confining; and on the user side, of knowing that the feed is not neutral.
From a technical point of view, three mechanisms are often combined:
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Real-time personalization: the model adjusts the feed according to the actions of the last few minutes, not just historic.
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Multi-objective ranking: content is rated on several axes (interest, probability of interaction, freshness), then ranked.
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Controlled diversification: to avoid fatigue, the system sometimes injects an adjacent subject, but stays close to what works.
Added to this is a highly calibrated notification design. A "someone has reacted" alert isn't just an information: it's a contextual reminder, placed when the likelihood of return is high (lunch break, end of day). Adolescents often describe pressure: too many alerts, too many social expectations. Some activate "Do not disturb" to revise, others temporarily uninstall an application to let the tension subside. These tactics are effective because they reintroduce a barrier, a delay, a decision.
Since the implementation of the European DSA and DMA frameworks, platformformes have had more obligations regarding transparency and the reduction of certain misleading mechanisms. In practice, the most important thing remains: continuous optimization of the flow. For a web or mobile project, it therefore becomes crucial to design experiences that respect cognitive load. This is precisely the area where DualMedia positions itself: arbitrate between performance (conversion, engagement) and attentional sobriety, with measurable paths and concrete safeguards.
Once the "what to show" is understood, the "how to show it" remains. Comportemental design, with its gray areas, explains why the user sometimes knows he should stop, yet continues on anyway.
To visually explorer the mechanisms of feed and short content addiction, a oriented product video search is useful.
Dark patterns, emotional design and time management: regaining control without disconnecting from the world
Dark patterns aren't just crude "tricks". They insinuate themselves into micro-choices: a "continue" button that's more visible than "quit", a hidden notification deactivation option, an autoplay activated by default, or a "pull-to-refresh" that mimics a slot machine. Emotional design renforce the whole: colors, sounds, vibrations, digital confetti after a publication. The result is a loop: stimulus, action, micro-reward, repetition.
Doomscrolling is a special case, as it combines infinite flow and anxiety. The heavier the news (wars, climate crises, political instability), the more the brain seeks to "know more" to reduce uncertainty. Yet an abundance of informations increases cognitive overload, followed by fatigue. Mental health researchers also describe rumination: each headline re-launches the same emotional sequence. So the useful question is not "should we informer?", but "how can we informer without getting stuck in a never-ending stream?".
Simple practices, inspired by strategies observed in teenagers and adults alike, work because they attack the system at its root: they restore deliberation where the platformforme has removed decision. Examples applicable to everyday life:
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Define two news slots per day and use a timer: time becomes an explicit constraint.
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Deactivate non-essential notifications and keep only those that are really useful (direct messages, security).
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Masking or avoiding explicit images: reading the information without absorbering the visual shock reduces the physiological impact.
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Replace part of the flow with "positive media" or long explanatory formats: the algorithme adapts to this new regime.
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Pause temporairement an application during revisions, overloads or moral drops: short uninstallation breaks the loop.
On digital products, these ideas translate into ethical functionalities: time bord chart, pause reminders, voluntary end of session, "read" mode without aggressive recommendations. Serious arbitration requires metrics and testing: measuring engagement, but also satisfaction, cold feedback, and perceived control. For a company, this can become a competitive advantage: a product that respects attention builds loyalty in a different way.
In this logic, DualMedia in mobile development and DualMedia in web design support the design of journeys that engage without confining, by working on UX, performance and conformity. The stakes are concrete: less toxic friction, more value, and therefore a longer-lasting relationship with the user.
To anchor these practices, a useful angle is to observe how designers and plateformes themselves talk about "dopamine", screen time and persuasive design, and then translate this into actionable settings.
A complementary video resource links these principles to concrete actions on smartphones and social applications.
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