Some people say that the stock market is a "Tool" To make money, but if you do not master certain operational skills, not only can’t earn money, but will lose money.
Financial markets belong to the social sciences, which are not only natural sciences, but also incorporate the subjective perceptions of the participants, and this subjective perception interacts with the objective facts, i.e. There is a countervailing link between imperfect perceptions and actual developments.