GUESS!: How AI Learns to Guess What Comes Next

Ask a brand-new AI where rain comes from. It says: "TOASTER!"That isn't a joke about AI being stupid. That is where every AI ever built begins - a box of random settings, guessing nonsense, completely sure of itself.Meet Nib: a small bot with exactly one job. Guess what comes next.Nib can't read. Nib has never had an idea. Nib doesn't know what rain is, or clouds, or even what a word is. What Nib has is a mountain of examples written by people, a coach who never gives the answer - only how wrong the guess was - and billions of tiny dials that turn a hair's width at a time.Do that a billion times, and "toaster" becomes "clouds."Nobody typed that in. It grew.The chapter most AI books leave outHalfway through, Nib starts making things up - and sounds exactly as certain as when it's right. Because Nib has no dial for "I don't know." It was never built with one.A machine built to guess will always guess. That's not a bug in Nib. That's Nib.It's also the single most useful thing a kid can know before they type a question into a chatbot - and the reason this book exists.Inside- 48 full-colour illustrated pages- Tokens, training, layers, loss, hallucination and bias - explained without one equation- Why an AI's confidence tells you nothing about whether it's right- Why lopsided examples make lopsided answers, and whose job it is to fix that- Train a Nib on Paper - a 15-minute unplugged activity for two players, a pencil, and 20 sentences- A glossary a ten-year-old will actually useNo magic. No robots taking over. Just a machine that guesses - and the people who decide what it guesses from.Ages 10-12. From the creator of PACKET! - How the Internet Really Works.