Wrote an intro to RAG: types of RAG systems (simple v complex), some of its use-cases, RAG vs fine-tuning, and some of the questions to ask when thinking about implementing RAG for the first time. Always happy to chat about RAG stuff if anyone's interested! https://medium.com/enterprise-rag/an-introduction-to-rag-and-simple-complex-rag-9c3aa9bd017b