A perfect world is possible
God wanted a perfect earth, but Adam and Eve sinned because they gave into temptation when tried by the devil/evil force. That sin is something that we inherit by nurture and nature. We know that we are limited, and that resources will eventually run out. God made enough resources for the earth to be eternal, we have just hurried to use them up and get to them before others, instead of evenly distributing. In this imperfect world our lives are threatened and as people we have a strong desire to live eternally. Our earth will not just over time get better; rather it is God's way of showing us and every witness, that the world cannot have another ruler and still be eternal and perfect. Eventually we will use up all of the resources and the earth will be destroyed due to our shortcomings. Luckily, if we looked to God for guidance, asked for our sins to be forgiven, and were willing to put in the same amount in effort, as we took out of the earth; or believing that we have to do good to get the good, then we will be able to live in the perfect world with God, because he will be able to trust that we will not do what Adam, Eve, and Hades did all those years ago.