Robust systems are made up of interacting parts that tolerate partial failures. The reason the U.S. economy as a whole remains strong is because its least efficient businesses are continually failing, and their resources get reabsorbed by more competitive parts. When this ceases to happen (eg. the "too big to fail" banks in 2008, "what's good for GM is good for the country" in 1953), the economy as a whole becomes much weaker. There is no similar ablation process for the U.S. government - lately, there hasn't been an easy way to let parts of it fail while still preserving the government as a whole. This will likely lead to the collapse of the whole government, which is unfortunate. It can't avoid the dynamic common to all systems: the way to avoid total failure is to tolerate and adapt to partial failure.