A Brief History of Civilization
For many years people gather at a place to live, work, and have mutual protection and support. Eventually a group of people at this place gets unhappy. They have ideas that could make things better. They start causing trouble. This new group either leaves voluntarily or they are driven out.
The new group moves away and starts a place using new ideas. Most of the time this new group fails but sometimes they are successful and the new place becomes much better than the old place.
The new place thrives and becomes powerful and strong. They resist outside influences but eventually need people from the old place to help out. People from the old place flock to the new place because of better conditions. The new place is glad to have the help.
The old place may feel threatened and try to take over the new place by force. This usually fails because the new place is stronger and has better Technology. The new place may also try to take over the old place and exploit its remaining resources.
The people in the new place become very satisfied and happy. They become soft and complacent and no longer willing to fight to protect their way of life. People from the old place take over more and more of the affairs of the new place. Eventually the people from the old place feel they are being exploited. They revolt and usually take over the new place.
The old group now starts running the new place like they ran the old place. Things get bad again. Eventually a group of people gets unhappy about the way things are and starts causing trouble. The story repeats over and over again! Just look at human history.