> In C++, technically every initialization of a sub-coroutine starts defaults to being a new heap allocation. I don't want to spread FUD: my understanding is t

> In C++, technically every initialization of a sub-coroutine starts defaults to being a new heap allocation. I don't want to spread FUD: my understanding is that the vast majority of these are optimized out by the compiler. But one downside of this approach is that you could change your code and accidentally disable one of these optimizations. I don't think this is correct. C++ 20 allows a lot of choices to implement it without forcing a heap allocation. see https://lewissbaker.github.io/2017/11/17/understanding-operator-co-await https://lewissbaker.github.io/2017/11/17/understanding-opera... also see this video that goes in depth how to have billions of coroutines with C++: https://www.youtube.com/watch?v=j9tlJAqMV7U https://www.youtube.com/watch?v=j9tlJAqMV7U