The Hidden Danger of Social Media Algorithms

Social media can be useful, entertaining and educational. It can help people connect, learn new skills, follow world events and share ideas. But it also has a hidden danger: the algorithm.

An algorithm is the system that decides what appears in a user’s feed. It studies what someone watches, likes, shares, searches for, pauses on and comments on. Then it shows more content that is likely to keep that person online.

That may sound harmless at first. But over time, the algorithm can create a powerful feedback loop. It can keep showing the same types of ideas again and again until they begin to feel normal, popular or unquestionably true.

This is one reason Australia’s social media age restrictions are important. From 10 December 2025, many age-restricted social media platforms in Australia have been required to take reasonable steps to prevent people under 16 from creating or keeping accounts. The eSafety Commissioner describes this as a delay to having accounts, rather than a punishment for young people or parents. Platforms can face penalties if they fail to take reasonable steps.

Why the Algorithm Is So Powerful

The main goal of many social media algorithms is not to make people wiser, calmer or better informed. The goal is usually to keep people engaged.

That means the algorithm often rewards content that triggers strong reactions. Anger, fear, shock, outrage, insecurity and excitement can all keep people scrolling. The more someone interacts with a topic, the more the platform learns to show similar content.

For example, if a person watches one video about an extreme opinion, the platform may recommend another. If they pause on that video, search the topic or read the comments, the algorithm may treat that as interest. Soon, their feed can become filled with similar posts, even if they never intentionally asked for them.

The eSafety Commissioner has warned that recommender systems can keep young people scrolling and shape what they see, believe and think about themselves.

The Problem with Echo Chambers

An echo chamber happens when people mostly see information that supports what they already believe. Instead of being exposed to different perspectives, they are surrounded by repeated versions of the same idea.

This can make the world seem simpler than it really is. It can also make extreme views feel more common than they are.

Over time, this can affect how people understand politics, identity, health, relationships, body image, success, money and other people. A person may begin to think, 'Everyone agrees with this,' when in reality the algorithm is only showing them one narrow slice of the internet.

A 2025 systematic review of research on social media algorithms found that filter bubbles, echo chambers and algorithmic bias can shape youth engagement across platforms including TikTok, Instagram, YouTube, Facebook and X.

How Online Brainwashing Can Happen Slowly

Online influence does not always feel like brainwashing. It usually feels like curiosity.

A person watches one video. Then another appears. Then the same message comes from a different creator. Then comments repeat it. Then memes make it seem funny. Then influencers make it seem cool. Eventually, the idea starts to feel familiar.

Familiarity is powerful. When people see the same message often enough, they may start to trust it, even if it is false, exaggerated or harmful.

This is especially risky when the content targets young people’s fears or insecurities. Algorithms can push content about appearance, popularity, masculinity, femininity, wealth, status, dieting, anger, conspiracy theories or distrust of others. When those ideas are repeated often, they can start to shape a person’s identity and worldview.

This does not mean every young person is helpless online. It means the system is designed to influence attention, and attention influences belief.

Why Social Media Limits Can Be a Good Thing

Australia’s social media age restrictions are not about saying the internet is all bad. They are about recognising that young people deserve time to grow before being exposed to systems designed to hold their attention for as long as possible.

The Australian Government says the minimum age law is designed to protect young people from risks of harm and support mental health and wellbeing. eSafety also notes that the law aims to reduce exposure to design features that encourage too much screen time and content that may harm health and wellbeing.

This matters because childhood and adolescence are important periods for developing judgement, emotional control, confidence and identity. Constant exposure to algorithmic content can make that harder. It can encourage comparison, anxiety, outrage, distraction and narrow thinking.

Social media limits can create space for healthier experiences: sleep, sport, reading, study, creativity, family time, face-to-face friendships and independent thinking.

The Difference Between Learning and Being Fed Content

There is a big difference between searching for information and being fed content.

When someone actively researches a topic, they can compare sources, check facts and think carefully. When someone scrolls through a feed, the platform chooses what comes next.

That makes passive scrolling risky. The user may feel in control, but the algorithm is quietly shaping the path. It decides which voices appear often, which emotions are triggered and which ideas become familiar.

This can limit perspective. Instead of seeing a wide view of the world, a person may see a personalised version of reality based on their past clicks.

How to Avoid Algorithmic Brainwashing

Avoiding online manipulation does not mean avoiding the internet completely. It means using it with awareness.

1. Ask, “Why am I seeing this?”

Every time a post appears, remember that it was selected for a reason. It may not be the most accurate, balanced or important content. It may simply be the content most likely to keep attention.

2. Follow different perspectives

A healthy information diet includes more than one point of view. Follow reliable sources, educators, experts and people with different life experiences. Avoid building a feed that only repeats what already feels comfortable.

3. Do not trust a claim just because it appears often

Seeing the same idea many times does not make it true. Repetition can create false confidence. Check important claims through trusted sources before accepting or sharing them.

4. Be careful with extreme content

Content that says 'everyone is lying', 'only we know the truth' or 'you must hate this group' should be treated carefully. Extreme content often uses fear and anger to pull people deeper into a belief system.

5. Take breaks from the feed

A short break can make it easier to think clearly. Time away from social media helps reset attention and reduces the emotional pull of repeated content.

6. Use search, not just scrolling

Searching for information gives more control than waiting for the algorithm to decide. Reading full articles, checking official sources and comparing different explanations can reduce the risk of being misled.

7. Talk to real people

Conversations with family, teachers, friends and trusted adults can help test ideas. If an online belief becomes hard to explain calmly in real life, it may be worth questioning.

8. Notice emotional changes

If a feed regularly leaves someone angry, anxious, insecure, hopeless or suspicious of everyone, that is a warning sign. A platform that constantly changes someone’s mood is having too much influence.

A Smarter Way to Use the Internet

The internet is one of the most powerful learning tools ever created. But social media feeds are not neutral libraries. They are personalised attention machines.

That is why Australia’s social media limits for under-16s matter. They recognise that young people should not have to face highly persuasive systems before they have had enough time to build strong critical thinking skills.

The goal is not to create fear of technology. The goal is to use technology wisely.

Algorithms can narrow a person’s world, but awareness can widen it again. By questioning what appears online, checking information, seeking different perspectives and taking regular breaks, people can stay more in control of what they believe.

The best online habit is not simply scrolling more. It is learning to pause, question and think.