> The language should provide all the necessary abstractions to create an isolated context. Actors can then "just" be a default abstraction provided by the stan

> The language should provide all the necessary abstractions to create an isolated context. Actors can then "just" be a default abstraction provided by the standard library. A stated goal is static, compile time, prevention of concurrency error. You can't do that with a concurrency library unless you restrict yourself to purely deterministic code.