Why Do Vector Search Chatbots Confidently Give You Wrong Answers?

At WeAreDevelopers I was given 10 minutes to cover Neo4j, generative AI, what GraphRAG is, and answer this question:

Why do plain vector search chatbots confidently give you wrong answers, like recommending an obscure film called Gordy when you asked about a talking pig movie (the answer was Babe)?

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The Gordy vs. Babe demo in the talk is the same one I wrote up in RAG vs GraphRAG — Two Retrievers, One Question, if you want to dig into how it works.