A few days ago I had a discussion with some friends and the course of the conversation turned towards discussing and comparing various societies both modern and ancient. The fall of Rome came up and my friends seemed to agree that it was in large part because Rome became "decadent". This seemed overly simplistic (and maybe judgemental) and admittedly I don't know too much specifically on the subject so I didn't chime in, but it did spark my interest =)
I remember in college an anthropolgy professor told the class that complex, resilient societies collapse because of multiple factors acting simultaneously... ie a famine, earthquake, foreign invaders, overpopulation, etc. occurring at the same time. This seems to make more sense to me than a single cause explanation.
Anyone know any reliable, relatively easy to obtain works that can enlighten me on the subject?