It's not that simple. The article is specifically complaining about how the design of Rust's async ecosystem forces one to use wasteful Arc<Mutex<T>> etc in pl

It's not that simple. The article is specifically complaining about how the design of Rust's async ecosystem forces one to use wasteful Arc<Mutex<T>> etc in places where the data has no reason to move across threads. Meanwhile, a greenthread system can happily use local state without atomics. I personally want Tokio and Glommio to have a baby that inherits good parts of both parents.