in thread "An Addendum to Quigley's Evolution of Civilizations.": An important feature of the theoretical approach in The Evolution of Civilizations is that it looks at changes over very long timescales, and glosses over anything which doesn't endure for at least half a century.... 12mo ago (collapse hidden) log in to judge received 10.0 10.0 An important feature (view hidden) log in to judge received 10.0 10.0