Whence this post

JEP 401 – a proposal to add value classes to Java – has been crystallizing for almost six years now, but I only learned about it this morning. I skimmed it, nodding along to myself as I thought “gee, I can’t imagine going back to Java” and “wonder how this might make Clojure more performant?”. But then I thought about some Datomic (actually, Datahike) data remodelling that I’d been working on recently, and I realized that the two areas are connected.