People on the left are often ignorant and ignorant of things, but they are unwilling to delve into them, and they only rely on enthusiasm and fantasy to make up some common-sense explanations to fill their ignorance. They try to interpret theories in an easy-to-understand way, but these interpretations are often superficial and even far from the core of the theory. The reason why theory has great power is not only that it can explain reality, but also that it can transcend reality and construct a new cognitive system. If a theory is merely an explanation of reality or is limited by reality, then it loses its value and can only be regarded as a simple record of reality.
The real world is the field of theory and practice, but it is not enough to rely on the human senses. Without the guidance of theory, human development will stagnate, and esoteric fields such as electromagnetic waves and black holes will never be explored. The real world is only a special case of theory, and theory itself has infinite power. Just as different geometric systems correspond to different worlds, the world we live in is only an occasional exception of a myriad of possible worlds.