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World 1 · Beginner · ~24 min
Foundations
How AI actually works — no math, no jargon, no hype.
In this world
- 01What AI actually doesThe one idea that explains why chatbots are brilliant — and why they sometimes aren't.
- 02Tokens & the context windowHow AI 'reads', what it can hold in memory at once, and why long chats go weird.
- 03Why AI makes things upHallucinations: what they are, when they happen, and the three habits that stop them hurting you.
- 04Fast models vs. thinking modelsWhen to let the AI 'think' before answering — and when that just wastes your time.
- 05Your AI toolboxChatbots, coding agents, research modes, image makers — what each kind of tool is for.
- ⚔️Boss: The Foundations GauntletSix questions, 90 seconds. Prove you know how the machine works.