>>13532335Because the market is an extremely complex system. Have an analogy in material strength.
Say you have a simple beam on 2 supports at each end and with a load in the middle. This is easy to solve with a simple formula or two. Now imagine you have a massive 300 meter tanker with hundreds of forces acting on it from within and from outside and your boundary conditions are not static (linear). We've developed finite element analysis methods and software to get an aproximate solution (so not 100% correct) to this problem (finding stresses and deflections, ...).
Now the financial markets, in the global 21st century variant are several orders of magnitude more complex than any other complex system we can find an -aproximate- solution to. Any "model" of the financial markets or economies is laughably bad. We simply don't have the knowledge/resources to successufully model a financial market with satisfying accuracy.
