Don't worry it's not that interesting. The author argues that Lucene has more types of data formats, indices etc. that the mix is more useful than each one feat

Don't worry it's not that interesting. The author argues that Lucene has more types of data formats, indices etc. that the mix is more useful than each one feature individually. Of course what we actually see with databases, including also graph databases and SQL databases, document databases, is that all databases sooner or later end up as hybrid databases. So this category of pure vector databases it's simply a strawman, if not now then in the mid term