Cultural divergence is the divide in culture into different directions, usually because the two cultures have become so dissimilar. The Amish provide an easy example for understanding cultural divergence.
Part of the Amish's religious beliefs are that every individual must forsake modern luxuries and convenience. The Amish view these as sinful and, for that reason, they do not allow outsiders into their community for fear the individual will influence others. The Amish build their communities away from the roads and towns. They grow and make just about everything they need. Regular society delivers the latest and greatest gadgets, but Amish society is content with the simple things.