I'm not sure I can agree with that comparison because physics, even quantum mechanics, are a still considered a natural science. Economics, on the other hand,

I'm not sure I can agree with that comparison because physics, even quantum mechanics, are a still considered a natural science. Economics, on the other hand, are usually considered part of the social sciences, due to the heavy sociological influences, which make modeling, predicting and testing extremely difficult. For all the talk of "the market", especially in the financial sector and by glorifying certain successful individuals, the reality seems to be far less understood than many people would admit to. Probably has to do with these people usually trying to sell their services/financial products with a reputation for "understanding and mastering the market".