Eventually consistent systems aren't built because eventual consistency is considered a "good" property. Eventually consistent systems are built because eventu

Eventually consistent systems aren't built because eventual consistency is considered a "good" property. Eventually consistent systems are built because eventual consistency is the least-bad option in a fundamental trade-off. When a distributed system is partitioned, it is impossible to execute all operations on a shared resource serializably. So, the system must either fail some requests, or fail to be serializable. You can have your principle of least surprise, or you can have a system that is capable of serving traffic even after some drunk sailor drags an anchor through a submarine cable. You can't have both.