I had the same “wow” thought when found out about Graph Databases in the context of social networks. Neo4j has vector similarity search on nodes, if it is powered to a AI RAG system we can generate nice information, content, recommendations (but not overuse it like instagram or tiktok do, since nostr doesn’t want to be like them). Also the relationship “feature” between tables is upgraded on whole new level in Graph Databases compared with traditional sql databases like Oracle where you have to do joins on a middle table to achieve same thing.