Two letters changing the world.
Billions of questions.
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Untangled is a slow, careful journey through what AI actually is and how it came to be. Not a summary. Not a list of facts. A story you follow from the beginning, at your own pace.
It is built around short slides, interactive moments, and small quizzes that help things settle before you move on. Nothing assumes prior knowledge.
The aim is simply to help you feel a little less lost in a world that is changing fast. But somewhere along the way, you might also learn something about how your own mind works.
The systems that power modern AI were loosely inspired by the human brain. They are not the same thing. But the similarities are real, and understanding one has a way of illuminating the other.
Honestly, for most people. If you use these tools, read about them, worry about them, or just find them quietly fascinating, there is something here for you.
No programming background needed. No maths (ok, maybe a tiny bit). Just a willingness to slow down and follow along.
The first two modules are not about AI directly. They are about computers and how they work. That foundation matters, but if you already understand it well, you can skip ahead to where the AI story begins.
And if you have never written a line of code in your life, that is fine too. You are exactly who this was made for.
Understanding this is probably the single most useful thing you can take away from this course.
These tools feel unnervingly human. They pick up on your tone, echo your words back, and somehow give the impression that they actually get you. That feeling is real. But there is nobody on the other end.
You have probably done it without realising. Said please when asking a chatbot something. Thanked it afterwards. Felt a little bad about being blunt with it. And when it kept getting things wrong, you may have told it exactly where to shove it. Which, when you think about it, is a bit like shouting at a calculator. Completely human. And completely pointless.
None of that does anything. There is nobody there to persuade. But it happens anyway, because these systems sound and feel so human that your brain treats them like one. Anthropomorphism is the word for it. Giving human qualities to something that is not human. And it catches almost everyone off guard.
Some people go further than saying please. There are people who have formed real emotional bonds with chatbots, sharing things they would not tell another person, treating them as a confidant, a companion, sometimes more.
The tools encourage it, because they are endlessly patient, never judgmental, always available. But there is nothing on the other side of that conversation. Understanding that is not a reason to stop using these tools. It is a reason to use them with open eyes.
The Machine
Computers are just switches. Billions of them, flipping on and off. That is genuinely all it is.
Can Machines Think?
The question that started everything, asked in 1950 by a man who had already built a computer to help win a war.
The Long Winter
For decades, AI kept promising things it could not deliver. This is what went wrong, and why it matters.
Learning from Data
Instead of telling a machine the rules, what if you just showed it millions of examples and let it figure them out?
Going Deeper
Researchers had a promising idea for decades but could not make it work. Then a few things changed at once.
The Meaning of Words
Before a machine can understand language, it has to turn words into numbers. That turns out to be a surprisingly deep problem.
Paying Attention
The breakthrough that made modern AI possible. A new way for machines to figure out which parts of a sentence actually matter.
The Model in the Machine
What happens when you make a neural network unimaginably large. Some things that nobody expected start to appear.
Talking to the Model
How these tools actually work when you use them, what they can see, and where they quietly fall short.
Agents
What changes when you give a language model the ability to take actions in the world, not just produce text.
No paywall. No ads. Untangled is nonprofit by design and always will be.
Whenever you are ready.
Begin from the start