(Author here) I think you've made a good point, though I disagree on the expensiveness. I think the point I should have tried to make is "Rust's async fns are

(Author here) I think you've made a good point, though I disagree on the expensiveness. I think the point I should have tried to make is "Rust's async fns are colored, but I don't think that's a big problem". In my head I used "suffers from the coloring problem" (which I would 90% attribute to point 3 in the post) and "is colored" interchangeably, but obviously there is a difference between the two.