I am not so optimistic about the population in the future. In my view the worlds youth today have a lifestyle which will affect the future. Everyone now days are thinking about the selves and there are few who want children in this world. Everything today is materialistic. Everyone wants materials, only material is thir goal. We are not progressing toward how we will make this world morally better.Also, in addition , we are thinking of how we will rase our kids. like i said before, everyone wants what is best to them and not thinking so much of others. I think population will decrease if we don't give to humanity and live hand in hand with others. My frind once told me about having kids it will never be right for me to bring children to a world where they only think about themselves.