The Search Engine Renaissance: How Apache Lucene and Elasticsearch Are Reclaiming the AI-Native Future

"The reports of my death are greatly exaggerated." — Mark Twain, if he were a search engine. For a few years there, it looked like the future of search belonged to the upstarts. Pinecone, Weaviate, Milvus, Qdrant—specialized vector databases born in the LLM era, promising semantic search at the speed of thought. Meanwhile, the venerable Apache Lucene (and its flagship offspring, Elasticsearch) was written off as a "legacy keyword engine" with some vector features bolted on the side. That narr...