My first reaction from reading part 3 and 4 is that humans are going to destroy the world. Anthem is suggesting that the world was almost destroyed by humans and in order to prevent that from happening again humans need to hold themselves back from their full potential. In the book we learned that Equality 7-2521 discovered electricity. This was a huge breakthrough for humanity when it was discovered by Thomas Edison. Instead, Equality 7-2521 has kept it to himself and nobody knew of his discovery. Unlike in The Giver, where the Giver has to pass on all of his memories to generations to come so that humans do not make the same mistakes they did when they almost destroyed the world, Equality 7-2521 knows he cannot tell his brothers about electricity, or he will die! In Anthem somebody must know the past because they created a community where nobody can have knowledge or question their reality, in order to prevent any crucial breakthrough like in the past. These people know they must keep humanity from understanding the technology of the past, and there can be no Givers. I feel that major discoveries in the past have changed our way of life in very important ways, not always for the better, but preventing this knowledge is not the best way to protect humanity.
Another aspect of Anthem I do not understand is why men and women are separated. Society works best when men and women are working together and making strong families. In anthem children do not know their parents. All children are practically orphans. We see in times of conflict, war, and poverty that children loose their parents. It is common knowledge that this is not good for the children or anyone else. We see this today in the conflict of Iraq and Syria. These children have no way of understanding of who they are and what is right or wrong in the world. In Anthem they are dependent on strange groups and beliefs to control their lives. If they had parents like we do their life's would make more sense and the world represented in anthem would too.