Never apologize for posting good history content. Unless you're a history PhD you probably don't know nearly enough world history. I certainly don't, and I'm not sure I trust what I do "know".

History focuses a lot of the "fall" of civilizations for obvious reasons. I wish it accompanied this discussion with an analysis of attributes which correlate to failing civilizations and attempted to find civilizations that had some/all of those attributes but managed to not fail. It's all well and good to say why a civilization failed, but it would seem that the most important reason for studying failed civilizations would be to prevent yours from failing; so having examples where you could say "90% of civilizations with these attributes failed within 100 years; this civilization had all of them, but after they did X, Y, and Z they no longer had attributes A, B, and C; and survived another 500 years" would be extremely useful.

Maybe this is studied, but it's not nearly as publicized as "failures".