The average national constitution lasts about 19 years. The United States has used the same one since 1789, which makes it the oldest working national constitution on Earth. That gap is the anomaly the original post is talking about. Since 1789 the world has produced close to 800 national constitutions, and only about half of them lasted past 19 years. France is the sharpest contrast. It started at the same line as America, and since then it has gone through five separate republics, two empires, a couple of monarchies, and at least fourteen constitutions. It is on version five right now, written back in 1958. The next-oldest national constitution still in use belongs to Norway, and it only dates to 1814, a full 25 years behind. Most attempts at a lasting written government fall apart inside a single generation. America's has held through a civil war, two world wars, a depression that put about a quarter of workers out of a job, and 27 amendments, without ever being thrown out and started over. About 4% of humanity lives inside US borders, and they produce close to a quarter of the world's economic output measured at market prices. The American economy is bigger than the next three put together, China and Germany and Japan combined. Eight of the ten biggest public companies on the planet, ranked by market value, are American. US stock markets alone hold a little over 40% of all the equity value on Earth. None of that was ever the default setting for human societies. For most of recorded history the normal ending was collapse, conquest, coup, or a slow decline into something you would not recognize. Stable money, peaceful handovers of power, and courts that last longer than the people who built them are the rare exception, not the normal starting point. When a system runs this smoothly for this long, the stability starts to feel like gravity, like the normal way things are. The historical record says the opposite. What looks completely ordinary from inside America is one of the least likely things a large group of people has ever built and kept going.