> Ruby uses green threads (meaning only one CPU will get > used) and they are no easy equivalent to Go channels. Restriction to a single core is a consequenc

> Ruby uses green threads (meaning only one CPU will get > used) and they are no easy equivalent to Go channels. Restriction to a single core is a consequence of the GIL. Also Ruby uses native threads, not green threads, since 1.9. The author's `execute` method is dangerous because it doesn't escape its arguments.