It is a pity Concurrent ML didn't take off. F# has a great library called Hopac that implements it, but it is 50 times less popular than its closest competitor Rx.
Also seconding that other post. Actor models and async concurrency are only useful if you need to send messages between machines, but otherwise you want to use synchronous concurrency as it is easier to deal with.
Also seconding that other post. Actor models and async concurrency are only useful if you need to send messages between machines, but otherwise you want to use synchronous concurrency as it is easier to deal with.