Originally Posted by Austin
The rise of a large group of rootless people is nothing new.

http://en.wikipedia.org/wiki/Nika_riots

Some other ideas on decline and rebirth.

http://en.wikipedia.org/wiki/Strauss-Howe_generational_theory

http://en.wikipedia.org/wiki/Kondratiev_wave

http://nextbigfuture.com/2010/12/summary-of-dr-bruce-cordells.html

All this has happened before, and all this will happen again.