> I can't remember having reached for an immutable ordered map in a long career. Me neither. But I have reached for a fast single producer, multi consumer que

> I can't remember having reached for an immutable ordered map in a long career. Me neither. But I have reached for a fast single producer, multi consumer queue, futures/promises, concurrent safe maps, non-blocking queues, and even plain async queues with batch semantics, many many times. So either the author, me and everyone else that is claiming this is a problem are doing it wrong or its actually a problem.