> Don't scale for millions of concurrent tasks when you're only looking at a couple dozen max, no matter what language or environment you're in. Very common pro

> Don't scale for millions of concurrent tasks when you're only looking at a couple dozen max, no matter what language or environment you're in. Very common problem for programmers this decade. And also with fibers/virtual threads (project loom) you can actually have a million threads using blocking hand-off on one machine. So the performance argument is kind of gone.