I don’t see a mention to this, but in event-driven architecture it’s really really important to either strongly guarantee order (affecting availability) or you

I don’t see a mention to this, but in event-driven architecture it’s really really important to either strongly guarantee order (affecting availability) or you need to design it around commutative operations / convergent state machines (better availability, but harder to design). Without either of those, it’s asynchronous CRUD and it’s much harder to guarantee correctness under concurrency.