I think Rust's `async` has been a great success for commercial "sponsors" of Rust, because it increased the complexity of the language so much that it's hardly

I think Rust's `async` has been a great success for commercial "sponsors" of Rust, because it increased the complexity of the language so much that it's hardly possible anymore to contribute to it without being full-time employed to do so. The decision for `async` handed a lot of power to Amazon et al.