What AI is and what it isn’t
When people talk about AI today, they almost always mean chat assistants like ChatGPT, Gemini, Claude or Copilot. You type something and they answer like a person. They’re very useful, but you need to understand what they are so you don’t trust them when you shouldn’t.
How it works, roughly
1LearnsIt has read huge amounts of text from the internet and books.
2PatternsIt learns how words usually follow each other.
3PredictsWhen answering, it picks the most likely next word, again and again.
4AnswerOut comes text that sounds great… true or not.
The key is the last step: AI is built to give answers that sound right, not to check they’re true. It doesn’t “know” things like a person, and it has no database of facts.
Why it sometimes makes things up
- If it lacks the information, it often fills the gap with something believable: a law that doesn’t exist, a figure, a book, a link.
- Its information can be out of date: taxes, prices or rules that have changed.
- It says everything with the same confidence, right or wrong. That’s the dangerous part.
Never trust it without checking on taxes, laws, paperwork, health or money. Use it to understand and prepare questions, but get the final answer from an official source or a professional.
What it’s really good at
- Explaining something hard in simple words.
- Writing a first draft: an email, an ad, a CV.
- Giving you ideas when you’re stuck.
- Summarising, organising and correcting texts.
- Translating (checking the result).
Think of AI as a very fast assistant that is sometimes wrong with great confidence. You’re the boss: you check and you decide.