You make it sound like Rust doesn’t support background CPU computation. Rust has always had threads (https://doc.rust-lang.org/book/ch16-01-threads.html https:

You make it sound like Rust doesn’t support background CPU computation. Rust has always had threads (https://doc.rust-lang.org/book/ch16-01-threads.html https://doc.rust-lang.org/book/ch16-01-threads.html), along with incredibly powerful libraries like Rayon (https://github.com/rayon-rs/rayon https://github.com/rayon-rs/rayon) to take advantage of them. async/await wasn’t specifically targeted for that use case because it didn’t need to be. But you can use threads with async, if you want, using a multi-threaded scheduler like Tokio with the rt-multi-thread feature flag (https://docs.rs/tokio/1.7.0/tokio/runtime/index.html#multi-thread-scheduler https://docs.rs/tokio/1.7.0/tokio/runtime/index.html#multi-t...).