- Add complete YAML frontmatter with metadata
- Add INTELLIGENCE tier badge
- Standardize to exactly 5 learning objectives
- Implement Build → Use → Analyze pedagogical pattern
- Add Why This Matters with GPT-3/BERT production context
- Add historical evolution from Word2Vec to contextual embeddings
- Add comprehensive Implementation Guide with lookup tables and positional encodings
- Add Systems Thinking Questions on memory scaling and sparse gradients
- Add Real-World Connections to LLMs and recommendation systems
- Reduce emoji usage for professional tone
- Add clear What's Next navigation to Module 12
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