There is a theory that suggests in western society a generational cycle personifying specific archetypes which shifts every 20-25 years with the emergence of a new way of life including political systems, social constructs, and the economic prospects. Along with this, there is also what is known as a saeculum that means a long human life, which last from 80-100 years, at the end of a crisis will occur, followed by a recovery period. While there is some debate as to the legitimacy of this theory, it is an interesting concept that will allegedly either falsify or prove itself in the coming years.