[valw]

I submit that Event Sourcing (or at least something very close to it) can be easy, once you've removed some technology locks. I've seen it happen with Datomic (https://vvvvalvalval.github.io/posts/2018-11-12-datomic-even...), but it can probably happen similarly with other tech, such as XTDB (https://xtdb.com/).