While I do agree generators offer some amazing features, I think they also offer some complexity that we are currently not ready to handle. from a given for lo

While I do agree generators offer some amazing features, I think they also offer some complexity that we are currently not ready to handle. from a given for loop: for (x in function()) Please tell me when this for loop will end. You cannot. If you instead did... next = fib() while (true) { number = next(); } You are instantly presented for every case in which this loop will terminate. Now don't get me wrong, I DO fully agree that a generator is the correct method for doing this, I'm just pointing out another construct to allow you to do this.