Yeah, you tell it what you want and it gives you something, then you tell it how that's not good enough and it gives you another thing, and you repeat until you

Yeah, you tell it what you want and it gives you something, then you tell it how that's not good enough and it gives you another thing, and you repeat until you have something that works for you (but, as the author notes, is hardly a real product that could be maintained and shipped to real customers.)