> Threads are a resource hog. I agree. They are if we spawn OS threads everytime we need a thread. The equivalent in async would be spawning the entire overhea

> Threads are a resource hog. I agree. They are if we spawn OS threads everytime we need a thread. The equivalent in async would be spawning the entire overhead of the event loop every time we need concurrency. Obviously, we don't do that. WorkerPools don't need respawning. Greenlets don't need respawning. Virtual Threads handled by the runtime don't need respawning.