It involves knowledge of different disciplines, including but not limited to: economics, computer science, law, political science, finance, currency, cryptography, mathematics, game theory, statistics, history, logic, physics, Chemistry, biology, astronomy, management, sociology, anthropology, education, psychology, communication, etc., and even philosophy, religion, and theology.Knowledge that you can think of or unexpected will be involved, and it is a fusion of the top knowledge in various disciplines, of course, the most basic is mathematics, computer science and economics.
Discipline is a relatively independent knowledge system. But the attributes are still relevant. A certain category can involve many disciplines. Perhaps the two categories can be summarized, and there is no need to subdivide more than a dozen.