Word Embeddings & Vector Databases Explained: How AI Understands Language

How do computers understand human language? This explainer walks from word embeddings (turning words into vectors) to Word2Vec, BERT's contextual embeddings, vector databases, retrieval augmented generation (RAG), and why embeddings can absorb human bias. Sources: Wikipedia "Word embedding" and "Vector database"; Mikolov et al., "Efficient Estimation of Word Representations in Vector Space" (arXiv:1301.3781). AI-generated explainer (narration is synthesised). Check the sources.