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.... 1mo ago (collapse hidden) log in to judge received 9.1 9.1 An important feature (view hidden) log in to judge received 9.1 9.1