> If LLM is a black box by definition and there's no way to make it consistently work correctly, what is it good for?..
many things are unpredictable on the real world. Most of the machines we make are built upon layers of redundancies to make imperfect systems stable and predictable. this is no different.
Yet RAG systems can perform quite well, so it's a definite proof that you can build something reliable most of the time out of something not reliable in the first place.