[vore]

I think async/await is just noise: if you already have a heavy runtime like JavaScript or Python does (I forgive Rust for this one because it's so tied to reducing runtime overhead), you might as well handwave the distinction between green threads and system threads away and just pretend all asynchronous calls are synchronous (e.g. like how the eventlet or the Go runtime do it): it's painful when you have to call an asynchronous function from a synchronous context!

If you put while (true) { } in an asynchronous function, wouldn't you also have a resource starvation problem? For what it's worth though, Loom threads are planned to be fully preemptible.