> most languages (sadly) don't have a battle-tested implementation of this. I’d argue that this is because it’s a failed idea that conflates OO encapsulation,

> most languages (sadly) don't have a battle-tested implementation of this. I’d argue that this is because it’s a failed idea that conflates OO encapsulation, concurrency constraints, identity, serialization, and networking into a behemoth that does none of those things well.