Another way to talk about CQRS/Event Sourcing

"A more promising model, used in some systems, is to think of a database as an always-growing collection of immutable facts. You can query it at some point in time — but that’s still old, imperative style thinking. A more fruitful approach is to take the streams of facts as they come in, and functionally process them in real-time."

Turning the database inside-out with Apache Samz
https://martin.kleppmann.com/2015/03/04/turning-the-database-inside-out.html