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RAG Fundamentals: Embeddings to Answers
The complete mental model: why retrieval beats stuffing, how embeddings actually encode meaning, the indexing→retrieval→generation pipeline, and building your first honest RAG system.
3 sections·7 lessons
What you'll learn
1. Why RAG, and the Pipeline
- Retrieval-augmented generation in one honest page
- Video: RAG from scratch (freeCodeCamp × LangChain)
- Check: the pipeline
2. Embeddings: Meaning as Geometry
- What the vectors actually encode
- Check: embeddings
3. Your First RAG, Done Right
- Build it, then break it honestly
- Final check: first build
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