TL;DR
- Feeds are designed to have no natural end. Infinite scroll removes the moment where you would normally decide to stop.
- Unpredictable rewards keep you swiping. Research shows that behaviour on social media follows the principles of reward learning.
- The feed also comes to you. Autoplay and push notifications start the next session before you have chosen one.
- Ranking systems learn what holds your attention. Signals such as finishing a video weigh more than what you say you like.
- Regulators now treat this as a design question. The EU has opened Digital Services Act cases on addictive design, and simple settings can return some control to you.
Contents
- What compulsive scrolling actually is
- Infinite scroll: removing the stopping point
- Variable rewards: why the next swipe feels promising
- Autoplay and notifications: the feed comes to you
- Engagement-optimised ranking
- What regulators are doing about addictive design
- How to regain control of your feed
- FAQ
You open an app to check one thing. Twenty minutes later you are still there, and you could not say what you saw. This is not a personal failing. It is the predictable result of a handful of design choices that work together. This article explains those mechanics in plain terms, what public bodies have said about them, and which settings change the experience.
What compulsive scrolling actually is
Compulsive scrolling is the pattern of continuing to consume a feed after it has stopped being useful or enjoyable. The feed is built from several layers, each solving a different problem for the platform: keeping you on the page, giving you a reason to continue, and bringing you back later.
The 2023 US Surgeon General’s advisory on social media and youth mental health names the main ones directly: “Push notifications, autoplay, infinite scroll, quantifying and displaying popularity (i.e., ‘likes’), and algorithms that leverage user data to serve content recommendations are some examples of these features that maximize engagement.”
Much of the public concern focuses on children and teenagers, whose online lives also leave a long trail, a topic covered in Sharenting explained.
| Feature | What it does | What it removes |
|---|---|---|
| Infinite scroll | Loads new content as you reach the bottom | The end of the page, a natural stopping point |
| Variable rewards | Mixes great posts with ordinary ones unpredictably | The sense that you have “seen the good stuff” |
| Autoplay | Starts the next video automatically | The decision to watch another one |
| Push notifications | Pulls you back into the app | The decision to open it |
| Engagement ranking | Orders content by what holds your attention | Your control over what comes next |
Infinite scroll: removing the stopping point
Infinite scroll was invented by designer Aza Raskin, before social media took off. His aim was to remove friction. As he put it in an interview with Masters of Scale: “Every time I ask the user to make a choice they don’t care about, I have failed as a designer.”
The problem is that “do I want to keep going?” is a choice people do care about. A page with a bottom, or a “next page” button, forces that question. Infinite scroll quietly answers it for you.
Raskin has since said he regrets how the feature was used. In an NPR interview he explained: “I invented the technology before social media got going, really as a technology to help people,” adding that “what I was blind to was that despite my good intentions, in technology, incentives eat intentions.”
Variable rewards: why the next swipe feels promising
Most feeds are uneven. One post is boring, the next is funny, the third is from a close friend. You cannot predict which swipe will pay off, so every swipe carries a small chance that it will. Psychologists call this kind of unpredictable payoff a variable reward, and it is a reliable way to sustain a behaviour.
There is direct evidence that social media works on these principles. A 2021 study in Nature Communications by Björn Lindström and colleagues analysed over one million posts from more than 4,000 people. It found that “human behavior on social media conforms qualitatively and quantitatively to the principles of reward learning”, and an online experiment showed that “social rewards causally influence behavior”. Likes, in other words, train posting behaviour in much the same way that other rewards train other behaviours.
The same logic applies on the viewing side. Pull-to-refresh, new-post counters and the occasional excellent video all keep the next action feeling worthwhile.
Autoplay and notifications: the feed comes to you
Infinite scroll keeps you on the page. Autoplay and notifications reduce the number of decisions you make at all.
Autoplay is simple. YouTube’s help page describes it plainly: “When Autoplay is on, another related video will automatically play after a video ends.” Short-video apps take this further, since the next clip starts the moment you swipe.
Notifications work at the other end of the session. Instead of you deciding to open the app, the app decides when to ask. The European Parliament’s 2023 resolution on addictive design lists “constant push notifications” among the practices to assess, and names “disabling all notifications by default” as a good design practice.
Engagement-optimised ranking
Feeds are rarely shown in time order by default. A ranking system decides what appears next, and it learns from what you do, not only from what you say.
TikTok’s own explanation of its For You feed lists the inputs as user interactions (likes, shares, follows, comments), video information (captions, sounds, hashtags) and device and account settings. It adds that “a strong indicator of interest, such as whether a user finishes watching a longer video from beginning to end” carries more weight than weaker signals.
That detail matters. You may never like a single post about a topic, but if you watch those videos to the end, the system notices. The result is a feed tuned to what holds your attention, which is not always the same as what you would choose. If you have ever wondered why ads feel suspiciously well-informed, the same behavioural signals are at work, as explained in Does Facebook listen through your microphone?
| Signal | Example | What TikTok says about weight |
|---|---|---|
| Strong behavioural | Watching a long video to the end | Greater weight than weak signals |
| Interaction | Like, share, comment, follow | Core input, no weight published |
| Content metadata | Hashtags, sounds, captions | Used to match similar content |
| Device and account | Language, country, device type | Lower weight, per TikTok |
Based on TikTok’s published description; other platforms use comparable but not identical signals.
What regulators are doing about addictive design
Public bodies increasingly treat addictive design as a product design issue, not only a matter of user willpower.
- European Parliament. On 12 December 2023 Parliament adopted a resolution on addictive design by 545 votes to 12, with 61 abstentions. It asked the Commission to “urgently assess the need to prohibit the most harmful practices not yet blacklisted”, naming “infinite scrolling and default auto-play”, and called for a digital “right not to be disturbed”.
- European Commission and Meta. On 16 May 2024 the Commission opened formal proceedings against Meta under the Digital Services Act, concerned that Facebook and Instagram systems “may stimulate behavioural addictions in children, as well as create so-called ‘rabbit-hole effects'”. On 10 July 2026 it preliminarily found that “Meta did not adequately assess the risks of its addictive design on the physical and mental wellbeing of users”, naming “infinite scroll, autoplay, push notifications, and the platforms’ highly personalised recommender systems”.
- European Commission and TikTok. On 6 February 2026 the Commission preliminarily found TikTok’s addictive design in breach of the DSA, citing “features such as infinite scroll, autoplay, push notifications, and its highly personalised recommender system.” In the Commission’s words, “These preliminary findings do not prejudge the outcome of the investigation.” According to law firm Matheson, a final non-compliance decision could mean a fine of up to 6% of worldwide annual turnover, and TikTok has said it will challenge the findings.
The DSA also expects the largest platforms to give users a feed that is not built on their personal profile. In the regulation’s own words (Recital 94), users should “enjoy alternative options which are not based on profiling.”
How to regain control of your feed
None of this requires deleting apps. The aim is to put stopping points back where the design removed them.
| Goal | Practical step |
|---|---|
| Add a stopping point | Set a daily app timer. Android’s Digital Wellbeing can “Limit how much time you spend in an app each day”; iPhone has equivalent limits in Screen Time. |
| Stop the next video | Turn off autoplay in the app settings, for example on YouTube. |
| Choose when to open the app | Switch off non-essential push notifications, or use Focus mode, where “you can’t use these apps and won’t get notifications from them.” |
| See posts in time order | Use a chronological view. Instagram’s Following and Favorites feeds can be set to show posts chronologically. |
| Reduce profiling | In the EU, look for the non-personalised feed option that large platforms offer under the DSA. |
| Retrain the ranking | Use “Not interested” and stop watching content you do not want more of. Finishing a video is itself a signal. |
Small frictions help too: moving apps off the home screen, logging out after use, or reading on a desktop browser where feeds are less immersive. None of these fix the design. They just restore the question the design was built to skip.
FAQ
Why can’t I stop scrolling even when I’m bored?
Because the feed is built without stopping points and with unpredictable rewards. The next post might be the good one, so continuing always feels slightly more attractive than stopping.
Who invented infinite scroll?
Designer Aza Raskin is credited with inventing it. He has said publicly that he did not foresee how social platforms would use it and that “incentives eat intentions.”
Is social media legally considered addictive in the EU?
There is no final legal ruling that a platform is addictive. The European Commission has issued preliminary findings under the Digital Services Act that the addictive design of TikTok (February 2026) and of Facebook and Instagram (July 2026) breaches the law. Preliminary findings are not a final decision.
Does a chronological feed reduce scrolling?
It changes what you see rather than guaranteeing less time. A time-ordered feed of accounts you follow usually has a natural end once you reach posts you have already seen, which brings back a stopping point.
What is the easiest single change to make?
Turning off non-essential push notifications removes most of the moments where the app, not you, decides when a session begins.
Sources: US Surgeon General advisory (HHS, 2023) · Masters of Scale: Aza Raskin · NPR transcript · Lindström et al., Nature Communications 2021 · TikTok Newsroom · European Parliament Legislative Observatory · European Commission: Meta proceedings · European Commission: Meta preliminary findings · European Commission: TikTok preliminary findings · Matheson · Digital Services Act (EUR-Lex) · YouTube Help · Android Digital Wellbeing · TechRadar
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