That is a false dichotomy. There are other options than async/await and threads. In my heart that is my main objection to async/await in Rust. It has "poison

That is a false dichotomy. There are other options than async/await and threads. In my heart that is my main objection to async/await in Rust. It has "poisoned the well" for asynchronous programming. Where people think it is async/await or threads We have been doing asynchronous programming for many decades.