The Critical Thinking Lab
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CTL · Media Literacy
95%
of everything you see on TikTok
was chosen for you by an algorithm.

In the Bubble.

Algorithms don't show you what's true. They show you what keeps you watching. And the more you watch, the more the algorithm learns to confirm what you already believe.

What you'll do: In each of the three examples ahead, you'll see someone's social media feed. One post has been specifically amplified because it matches what users with that person's engagement history tend to click on most.

Your job is to identify which post the algorithm pushed, and understand why.
Critical Thinking Lab
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CTL · Media Literacy

The algorithm's five favorite feelings.

Every platform learns what keeps you scrolling. Here are the five emotional loops it exploits, tap each one to see how it works.

The CycleYou search "healthy eating" or watch one workout video.
The FeedExtreme "What I Eat in a Day" videos, restrictive diets, and idealized body transformations flood in.
The Bias: These extreme routines start to feel like the normal, healthy standard, because they're all you see.
The CycleYou linger on a video about a fashion aesthetic or a "must-have" product.
The FeedHaul videos, "de-influencing" content, and Get Ready With Me clips featuring the exact same items.
The Bias: These products feel universally essential, like everyone already has them but you.
The CycleYou watch one video about climate change, the economy, or "what the future looks like for your generation, and it's not pretty."
The FeedIncreasingly catastrophic content floods in, "past the point of no return," "your generation will never own a home," "the system is designed to fail you", with solutions, nuance, and hopeful stories algorithmically deprioritized.
The Bias: The future starts to feel genuinely hopeless, not because it is, but because despair drives more engagement than nuance. The algorithm profits from your anxiety.
The CycleYou like a meme or short video critiquing a political figure or social issue.
The FeedRage-bait clips that strip complex issues down to black-and-white, making the other side look ridiculous or evil.
The Bias: Moderate viewpoints disappear from your feed entirely, so the opposing side starts to seem completely irrational.
The CycleYou pause, even just out of curiosity, on a celebrity conspiracy or "things that don't add up" video.
The Feed"Part 2" videos, hidden evidence clips, and commentary that all back the original claim.
The Bias: The sheer volume of agreeing content makes an unverified rumor look like established fact.
Notice the pattern: In every case, the algorithm isn't trying to inform you, it's trying to keep you engaged. The most engaging content is rarely the most accurate. Now you'll see this in action with real examples.
Critical Thinking Lab
CTL · Media Literacy

Pick a scenario.

Each one shows the same loop playing out in a different part of teen and tween life. Work through them in any order.

You've explored all three scenarios. Nice work, you now know exactly how the loop operates. Head back to any one for a second look, or see your takeaways.
The Critical Thinking Lab
Step 1 of 3, Read
🔍 Key concept loading...

This is their feed.

Scroll through like you normally would. Don't overthink it yet.

The Critical Thinking Lab
Step 2 of 3, Find it

Spot the amplified post.

One post is being pushed by the algorithm because it matches this person's engagement history. Which one?

Tap a post to select it · One guess only

The Critical Thinking Lab
Step 3 of 3, Review

Not this one.

That post is real, but it wasn't the one specifically amplified for this user. Here's which post the algorithm actually pushed, and why.

⚡ Algorithmically amplified
Why the algorithm chose this

⚡ Your feed 24 hours later

Because that post got your attention, here's what the algorithm now thinks you want to see, each one more extreme than the last. Have a scroll.

One click. That's all it takes to teach the algorithm what to amplify next.

🔧
    The Critical Thinking Lab
    Step 3 of 3, Review

    You spotted it.

    Good instinct. Now here's the more important question: why did the algorithm choose this one, and what does that mean for your information diet?

    ⚡ Algorithmically amplified
    Why the algorithm chose this

    ⚡ Your feed 24 hours later

    Because one person with this engagement history clicked on that post, here's what the algorithm now thinks they want to see, each one more extreme than the last. Have a scroll.

    One click. That's all it takes to teach the algorithm what to amplify next.

    🔧
      The Critical Thinking Lab
      ← Learning Lab
      CTL · Media Literacy
      ✓
      Great job!

      You've seen how the loop works.

      Now you can't unsee it.

      One click is enough. You don't have to agree with something for the algorithm to learn from it. Pausing, watching even part of a video, or lingering on a post all teach the algorithm what to amplify next.
      Your feed narrows without you noticing. The algorithm doesn't show you the world, it shows you a mirror of your most engaging reactions. Over time, it removes moderate viewpoints and replaces them with louder, more extreme versions of whatever you've already clicked on.
      That's confirmation bias on autopilot. You start to believe that the extreme view in your feed is the normal, mainstream view, because it's all you see. It's not. It's just what the algorithm learned you'd engage with.
      The fix isn't deleting your apps. It's knowing the loop exists. When you notice your feed showing you only one perspective, on anything, that's the algorithm doing its job. Your job is to go looking for what it's leaving out.