Freelance writer Theo Green explains why knowing when not to trust AI is as important as knowing how to use it

Artificial intelligence has become one of the fastest-growing technologies of the decade. Whether you’re asking ChatGPT to explain a difficult concept, using an AI assistant to write an email or relying on a search engine’s AI summary, these tools are increasingly shaping how we access information. Their speed and fluency can make them feel like reliable experts, capable of answering almost any question in seconds.
But appearances can be deceptive.
While AI has transformed the way we work, study and communicate, it is far from infallible. It can confidently present incorrect information, misinterpret questions and, in some cases, offer advice that is inappropriate or misleading.
As AI becomes more deeply embedded in everyday life, knowing when not to trust it is becoming just as important as knowing how to use it.
Why AI can be wrong
Unlike a human expert, AI does not "know" facts in the traditional sense. It has not read every book or verified every source. Instead, it generates responses by identifying patterns in enormous amounts of text. It predicts what words are most likely to come next based on the prompt it receives.
Most of the time, this process produces useful and accurate answers. However, it can also produce entirely false information that sounds completely believable. Researchers refer to these mistakes as "hallucinations"—instances where AI invents facts, statistics, quotations or references without realising they are incorrect.
The problem is that AI rarely signals uncertainty in the way a person might. A human might admit, "I’m not sure," or recommend checking another source. AI, by contrast, can deliver an inaccurate answer with remarkable confidence, making it difficult for users to recognise when something is wrong.
The red flags to watch for
One of the clearest warning signs is a lack of evidence. If AI claims that "studies prove" something or that "experts agree", ask where that information comes from. Reliable facts should be backed up by trustworthy sources, such as universities, government agencies or recognised research organisations.
Similarly, treat highly specific figures or quotations with caution if they are not supported by references. AI can generate statistics that look convincing but have no basis in reality. “Facts” need to be checked out, and any references provided explored to see if they are relevant (or even exist).
Another warning sign is inconsistency. If you ask the same question in a different way and receive a completely different answer, it may indicate that the AI is uncertain. Asking follow-up questions such as "How do you know that?" or "Can you provide evidence?" can reveal whether the response is genuinely well supported or simply plausible-sounding.
Think twice before following important advice
AI can be a useful starting point for many everyday questions, but it should never be considered a substitute for professional advice when the consequences are significant.
Health, legal matters, financial planning and personal safety are all areas where mistakes can have serious consequences. An AI chatbot cannot carry out a medical examination, understand every detail of your financial circumstances or interpret complex legal regulations in the same way as a qualified professional.
Life is rarely straightforward
Life is rarely straightforward, yet AI can sometimes make it appear that it is.
Many questions depend on personal circumstances. Career decisions vary according to qualifications and experience. Medical advice depends on symptoms and medical history. Laws differ between countries, and even between regions.
If an AI provides a one-size-fits-all answer to a complex problem without asking for more information, that should raise questions. Real experts usually need context before they can offer meaningful advice.
So, if an AI recommends starting a treatment, signing a legal document or making a major financial decision, verify that advice independently before acting on it. After all, the AI is just a calculating machine, and all it is doing is predicting what word should come next in its answer.
The risk of bias
Although AI is often promoted as objective, it reflects the information on which it has been trained. Because that information comes from human-generated content, it can contain biases, stereotypes or gaps in representation.
This does not necessarily mean that AI is intentionally biased, but it does mean that its responses may not always present a complete or balanced picture. On controversial issues, it is sensible to compare information from multiple reliable sources rather than relying on a single AI-generated answer.
Critical thinking remains one of the most valuable skills in the digital age.
Don’t assume information is up to date
Another limitation is that AI may not always reflect the latest developments. News stories evolve quickly, scientific understanding changes and governments regularly update policies and regulations.
Before relying on AI for current affairs, travel advice, product recalls or changes in the law, it is worth checking official websites or reputable news organisations. Information that was accurate a few months ago may no longer be correct today.
Even AI systems with access to live information can occasionally misunderstand or misrepresent recent events, making independent verification worthwhile.
AI works best as a research assistant
Despite its limitations, AI remains an extremely useful technology. It can summarise long documents, explain difficult concepts, generate ideas and help people work more efficiently. Used wisely, it can save significant amounts of time.
The key is to treat AI as a research assistant rather than the final authority. Just as journalists fact-check information before publication, users should verify important claims before accepting them as true.
A good rule of thumb is simple: the greater the consequences of acting on the information, the more carefully it should be checked.
The bottom line
Artificial intelligence is changing how people find and use information, and its influence will only continue to grow. Its ability to produce clear, persuasive answers makes it a powerful tool, but also one that demands careful use.
Rather than accepting every response at face value, users should question unsupported claims, look for reliable evidence and seek expert advice when the stakes are high. AI can be an excellent starting point for learning and problem-solving, but it is not a replacement for human judgement.
In an age where misinformation can spread as quickly as accurate information, perhaps the most important skill is not simply knowing how to use AI—but knowing when not to believe it.
Theo Green is a freelance writer
Main image courtesy of iStockPhoto.com and Thai Liang Lim


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