> Thinking that event sourcing and CQRS are synonyms is a fundamental misunderstanding also. Indeed. These are two separate patterns. They can have great syner

> Thinking that event sourcing and CQRS are synonyms is a fundamental misunderstanding also. Indeed. These are two separate patterns. They can have great synergy when used together but it's not a requirement. > it's hard to prevent invalid state transitions being submitted to an event sourcing datastore Apply DDD, use code review, and use stream level ACLs.