The Knowledge Problem
The idea that even the brightest person or group of bright people, much less the U.S. Congress, can wisely manage an economy has to be the height of arrogance and conceit. Why? It is impossible for anyone to possess the knowledge that would be necessary for such an undertaking.
Imagine you are trying to understand a system consisting of six elements. That means there would be 30, or n(n-1), possible relationships between these elements. Now suppose each element can be characterized by being either on or off. That means the number of possible relationships among those elements grows to the number 2 raised to the 30th power; that's well over a billion possible relationships among those six elements.
Our economic system consists of billions of different elements that include members of our population, businesses, schools, parcels of land and homes. A list of possible relationships defies imagination and even more so if we include international relationships. Miraculously, there is a tendency for all of these relationships to operate smoothly without congressional meddling.