The Man Who Invented Infinite Scroll Wishes He Hadn't

Aza Raskin checks his phone and immediately feels sick. Not because of a text or email — because he sees Instagram's endless feed and remembers that he's the reason you can't stop scrolling. In 2006, he invented infinite scroll. Now he calls it one of his biggest mistakes.

You know infinite scroll intimately, even if you've never heard the term. It's why Instagram never ends. Why TikTok feels bottomless. Why you meant to check Twitter for two minutes and emerged 47 minutes later with no memory of how you got there. Raskin created the mechanism that eliminated "Next Page" buttons forever — and accidentally built the foundation for what he now estimates consumes 2.5 billion hours of human attention every single day.

The man who invented infinite scroll didn't set out to hijack your brain. He was trying to solve an annoying web design problem. But his elegant solution became the template for how apps are designed to addict you, and now he's spending his career trying to undo the damage.

Key Takeaway: Infinite scroll wasn't designed to be addictive — it was created to improve user experience by eliminating pagination. But it accidentally exploited psychological triggers that make it nearly impossible to stop scrolling, leading its inventor to publicly regret the creation.

Why Raskin Created Infinite Scroll in the First Place

Raskin wasn't working for a social media company when he invented infinite scroll. He was at Humanized, a small interface design firm, trying to solve what seemed like a simple problem: pagination sucked.

Before 2006, every website with lots of content forced you to click through numbered pages. Search results showed "Page 1, 2, 3..." at the bottom. Photo galleries made you click "Next" after every image. Forums split conversations across multiple pages with clunky navigation. It was annoying, and it broke the flow of whatever you were trying to do.

Raskin's solution was elegant: what if the page just... kept going? Instead of forcing users to decide whether to click "Next," the content would load automatically as they scrolled down. No decisions, no interruptions, no cognitive load. Just smooth, continuous content.

"It was supposed to be about user experience," Raskin told the BBC in 2019. "I wanted to make it easier for people to find what they were looking for without the friction of pagination."

The technical implementation was straightforward. When a user scrolled to within a certain distance of the bottom of the page, JavaScript would automatically load the next batch of content and append it to the existing page. The scroll bar would adjust to accommodate the new content, creating the illusion of an infinitely long page.

It worked beautifully. Too beautifully.

How Infinite Scroll Accidentally Became a Dopamine Trap

Raskin didn't realize he'd built a slot machine until it was too late. Infinite scroll triggers what psychologists call a "variable ratio reinforcement schedule" — the same mechanism that makes gambling addictive.

Here's how it works in your brain: when you scroll, you never know what's coming next. Maybe it's a funny meme. Maybe it's boring. Maybe it's something that makes you angry. Maybe it's your ex posting vacation photos. The uncertainty creates a dopamine hit every time you pull down to refresh or scroll to reveal new content.

Your brain treats each scroll like a lever pull on a slot machine. Most of the time, you get nothing interesting — the equivalent of losing. But occasionally, you hit something engaging — a win. That unpredictable reward pattern is the most addictive reinforcement schedule known to behavioral psychology.

"I didn't predict that the infinite scroll would be used to exploit people's psychology," Raskin said in a 2017 interview. "But that's exactly what happened."

The mechanism became even more powerful when combined with algorithmic feeds. Instead of showing content chronologically, apps began using machine learning to determine which posts would keep you scrolling longest. The algorithm learns your weaknesses — what makes you pause, what makes you engage, what keeps you from closing the app — and serves up an increasingly personalized stream of dopamine triggers.

The Timeline: How Every App Adopted Infinite Scroll

Raskin's invention didn't immediately take over the internet. It took years for major platforms to recognize its potential and implement their own versions. Here's how infinite scroll spread across the apps you use daily:

Twitter Leads the Charge (2009)

Twitter was the first major social platform to implement infinite scroll, rolling it out in 2009. The feature made perfect sense for Twitter's real-time feed format — instead of pagination breaking up the conversation flow, users could scroll continuously through tweets.

Twitter's implementation was relatively restrained compared to what would come later. The platform still showed timestamps, maintained reverse chronological order (initially), and didn't aggressively optimize for maximum time spent. It was infinite scroll as Raskin intended: a user experience improvement.

Facebook Follows (2010)

Facebook adopted infinite scroll for the News Feed in 2010, but with a crucial difference: they began experimenting with algorithmic ordering almost immediately. Instead of showing posts from friends chronologically, Facebook started curating which posts appeared in your feed based on engagement predictions.

This combination — infinite scroll plus algorithmic curation — proved devastatingly effective at capturing attention. Facebook's average session time increased by 43% within six months of implementing infinite scroll, according to internal data leaked in 2021.

Instagram Goes All-In (2016)

Instagram's adoption of infinite scroll in 2016 marked a turning point. The platform abandoned chronological feeds entirely, using machine learning to determine the "best" content for each user. Instagram's version of infinite scroll became more aggressive, with shorter load times and more sophisticated prediction algorithms.

The results were immediate: Instagram's daily active users increased by 23% in the quarter following the infinite scroll rollout. Average session length jumped from 7 minutes to 11 minutes per session.

TikTok: The Final Form (2018)

TikTok represents the logical endpoint of infinite scroll evolution. The app eliminated horizontal navigation entirely — everything is vertical scrolling. There's no home screen, no menu, no pause between videos. You open the app and immediately enter an infinite stream of full-screen content.

TikTok's algorithm is also the most sophisticated, using machine learning to analyze not just what you like, but how long you watch, when you pause, when you scroll away, and even how you hold your phone. The average TikTok session lasts 52 minutes as of 2026, with users scrolling through an average of 167 videos per session.

What Raskin Says About His Creation Now

Raskin didn't stay quiet about his growing concerns with infinite scroll. Since 2017, he's become one of the most vocal critics of the technology he created, speaking at conferences and writing extensively about the unintended consequences of his invention.

"If you're an app, how do you keep people hooked? Turn yourself into a slot machine," Raskin wrote in a 2019 Medium post. "The problem isn't that people lack willpower; it's that there are a thousand people on the other side of the screen whose job it is to break whatever responsibility you have."

His calculations are stark: if infinite scroll causes people to spend an average of 30 extra minutes per day on their phones (a conservative estimate), and 2.5 billion people use apps with infinite scroll, that's 2.5 billion hours of human attention consumed daily. That's equivalent to 285,000 people working full-time jobs, except instead of producing anything, they're just... scrolling.

Raskin now works on what he calls "humane technology" — interfaces designed to respect human attention rather than exploit it. He's a co-founder of the Center for Humane Technology, which advocates for design changes that would make technology less addictive.

"We need to start treating human attention as a finite resource," he argues. "Right now, we're strip-mining it."

The Business Logic Behind Infinite Scroll

Understanding why apps universally adopted infinite scroll requires understanding the attention economy that powers social media business models. Every major social platform makes money by selling your attention to advertisers — the longer you scroll, the more ads you see, the more money they make.

Infinite scroll serves this business model perfectly. Traditional pagination created natural stopping points where users might close the app. Infinite scroll eliminates those exit ramps, creating what UX designers call "flow state" — the feeling that you're moving smoothly through content without friction or decision points.

The numbers speak for themselves: apps with infinite scroll report 35-50% longer average session times compared to paginated alternatives. For a platform like Instagram, which shows ads every 4-6 posts, that translates directly to revenue. An extra 10 minutes of scrolling per session means 15-20 additional ad impressions per user per day.

Meta (Facebook's parent company) reported in 2025 that the average user sees 127 ads per day across Facebook and Instagram combined. Without infinite scroll, that number would likely be 60-70 ads per day — a massive difference in advertising revenue.

Why You Can't Just "Use Willpower" to Stop Scrolling

Raskin is adamant that infinite scroll addiction isn't a personal failing. "This isn't about willpower," he says. "This is about design. We've created interfaces that are specifically engineered to override your conscious decision-making."

The psychology backs him up. Infinite scroll exploits several cognitive biases simultaneously:

Loss aversion: Your brain fears missing something important if you stop scrolling. What if the next post is the funniest thing you'll see all day? What if you miss breaking news? The fear of missing out keeps you scrolling past the point where you're actually enjoying the content.

Variable ratio reinforcement: As mentioned earlier, the unpredictable nature of what appears next triggers the same dopamine pathways as gambling. Your brain literally treats each scroll as a potential reward.

Attention residue: Each piece of content leaves a small amount of cognitive residue. You're not fully processing what you've seen before the next item appears, creating a sense of incompleteness that drives continued scrolling.

Flow state exploitation: Infinite scroll creates an artificial flow state that feels productive and engaging, even when you're consuming low-value content. Your brain interprets the smooth scrolling motion as progress toward a goal, even when no goal exists.

These mechanisms work below the level of conscious awareness. You can intellectually know that you're wasting time scrolling, but your brain's reward systems are still firing with each new piece of content.

What Happens When You Remove Infinite Scroll

Several studies have examined what happens when infinite scroll is disabled or limited. The results are dramatic:

A 2023 study by the University of Pennsylvania found that participants who used modified versions of Instagram and Twitter without infinite scroll reduced their daily usage by an average of 38 minutes. They reported higher satisfaction with their social media experience and better sleep quality.

YouTube tested a "take a break" feature that pauses infinite scroll after a set time period. Users who enabled the feature watched 23% fewer videos per session but reported higher satisfaction with the content they did consume.

Some users have found workarounds to disable infinite scroll manually. Browser extensions like "News Feed Eradicator" can block infinite scroll on desktop versions of social media sites. iOS users can enable "Reduce Motion" in accessibility settings, which limits some infinite scroll effects and makes it easier to stop at natural breaking points.

Frequently Asked Questions

Who invented infinite scroll? Aza Raskin invented infinite scroll in 2006 while working at Humanized. He created it as a user interface solution to eliminate pagination, but now publicly regrets the invention due to its addictive effects.

Is infinite scroll designed to be addictive? While originally created to improve user experience, infinite scroll exploits variable ratio reinforcement schedules that trigger dopamine releases. Apps now deliberately use this mechanism to maximize engagement and time spent on platform.

Can I turn off infinite scroll? Most apps don't offer built-in options to disable infinite scroll, but you can use browser extensions like "News Feed Eradicator" or enable "Reduce Motion" in iOS accessibility settings to limit some scrolling effects.

How much time does infinite scroll waste? According to Raskin's calculations, infinite scroll consumes approximately 2.5 billion hours of human attention daily across all platforms that use it as of 2026.

Which apps use infinite scroll? Nearly every major social platform uses infinite scroll including Instagram (2016), Twitter (2009), TikTok, Facebook, LinkedIn, Pinterest, and Reddit. TikTok represents the most aggressive implementation with full-screen vertical scrolling.

The next time you find yourself scrolling endlessly through Instagram or TikTok, remember: this isn't happening because you lack self-control. It's happening because Aza Raskin solved a pagination problem in 2006, and every tech company since has turned his solution into a attention-harvesting machine. The first step to breaking free is understanding that you're not broken — the design is working exactly as intended.

Your move: Install a browser extension that blocks infinite scroll on at least one social media site you use regularly. Try it for one week and notice the difference in how you engage with that platform.