On: Are we at peak vector database?

[zeroCalories]

I agree. Honestly even the fundamentals of vector databases aren't really "solved" in the way they are for other databases. Vector indexing, embedding generation, horizontal scaling, etc. can probably still improve a lot. And don't forget, even if Postgres and MySQL are the only traditional databases in town, every tech company had their own SQL database once. Many of them are still around too. No need to get pissy about these companies.

[dmezzetti → zeroCalories]

Agreed. For example, here is a post about integrating vector search results with semantic graphs for RAG - https://news.ycombinator.com/item?id=39141420

And here's a post on an alternative way to integrate vectors with traditional databases (Postgres, MySQL) - https://neuml.hashnode.dev/external-database-integration

As others have said in this thread, cosine similarity on arrays of vectors isn't novel. But there are many possibilities past that, many we haven't thought of yet too.