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New to AI? Start from the ground up.

Foundations, no jargon: from "what is an LLM?" to how agents reason.

13 pieces

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AI estimates — it doesn't calculate

7 minYou trusted a confident AI answer the way you'd trust a calculator. Then you discovered it was wrong. Here's why that keeps happening, and what to do about it.

Why this time is different

8 min

AI is not one thing

8 min

Grading what you can't exact-match

9 min

How agent teams coordinate: a guide to choosing the right shape

10 min

How RAG actually works

9 min

What "agentic" actually means

5 min

You might not need an agent

8 min

From LLMs to agents: the complete journey

6 min

How agents remember: memory and knowledge representation

6 min

How an AI agent thinks

5 min

Prompt engineering from zero: write a formal letter, not a text message

6 min

One agent or many? When each one fits

7 min