Fantastic analogy. Most of economics, especially macroeconomics, is quackery and neoliberal political agendas masqueraded by complex equations and mathematical models divorced from reality. The fact that only a handful of economists saw the recent economic depression is extremely telling. The data is often so aggregated that a lot of the broad conclusions are practically useless. The obsession over maximizing faulty metrics like GDP and the U-3 unemployment rate is ludicrous.