We even do not need all that. Perfection at first is not for us. It is hard for human beings to be perfect. We always do something wrong. For example, to live on Earth, we are obliged to destroy the planet. When we eat, we kill animals. When we build roads and houses, we cut trees. Whatever we do, we are not perfect. Check our religions, they are not perfect as well. They change according to time and our wisdom. Meanwhile, I believe that we can try to improve our society by helping each other and doing good actions whenever we can. For human beings, a perfect world cannot exist. Perfection can maybe exist for robots. They are programmed and do not have freedom as we do.