> So here we are, in a situation around async that makes nobody happy. C++ coroutines, despite the hate they get, and Go green threads, despite the performance,

> So here we are, in a situation around async that makes nobody happy. C++ coroutines, despite the hate they get, and Go green threads, despite the performance, actually seem to be closer to the mark. The story that gets told -- and for some reason, I tend to believe it, even though I'm much less idealistic than 10 years ago -- is that folks in the Rust community (and not just them of course, also C++ people and lots of others) tend to really push hard against abstractions that aren't both ergonomic and zero-cost. It is frankly kind of amazing to see the solutions that emerge after months and years of what somewhere resembles either head-butting or crazy experimentation. The path to getting there is messy, and it seems like maybe that's where we are now.