A friend recently asked: How long do we have left as a society? In answer to that question I informed her about an interesting and comprehensive study that a renowned British anthropologist, Joseph Unwin, PhD., presented to the British Psychological Society in 1935. Unwin sought to prove that the traditional monogamous model for marriage was not essential to the maintenance of a healthy society.
After studying 86 different cultures, across time and continents and much to his surprise he came to the inescapable conclusion that the traditional male-female monogamous model for marriage was indeed the best foundation for a healthy and productive society.
Unwin found that societies that adopted this model typically took about three generations to reach their peak of productivity and progress. After that, frequently, a gradual development of complacency and licentiousness would take place and what he described as an outburst of homosexuality would sometimes occur. When that happened, and the society started to move away from the traditional model of male-female monogamous marriage as its foundation, it would begin to unravel. It would then take another three generations of deterioration from that point for the society to collapse...
How Much Time Does the U.S. Have? | Catholic Exchange
Jungle25 is not talking about "righteous civilizations" and he is not talking about "conclusions about existence" and neither am I.