I believe this is a metaphoric view of classification of humans in political borders based on power and technology. One thing that I have noticed boldly is that the story successfully intends to explain the analytical capabilities among both advanced societies and undeveloped ones are almost the same. I won't go further in order to avoid spoiling the movie. However, I strongly recommend to consider political aspects while watching it.
This was defiantly a unique experience for me, more like a conversation with people who care about history of civilizations and future of humans in different societies. I am very pleased and thankful to those who have made it possible for me to watch this unique animation. Considering the time it has been made, almost everything was great.