I like this a lot, the right level to get an idea of what Rust is about. The last example illustrates that concurrency is complex no matter what language you u

I like this a lot, the right level to get an idea of what Rust is about. The last example illustrates that concurrency is complex no matter what language you use - the code ends up reflecting the scaffolding enabling concurrency and the actual work ends up buried inside. That said, I like what I see.