The key strengths of civilizations are also their central weaknesses. You can see that from the fact that the golden ages of civilizations are very often right before the collapse. The Renaissance in Italy was very much like the Classic Maya. The apogee was the collapse. The Golden Age of Greece was the same thing. We see this pattern repeated continuously, and it is one that should make us nervous. I just heard Bill Gates say that we are living in the greatest time in history. Now you can understand why Bill Gates would think that, but even if he is right, that is an ominous thing to say.