All rational thinking is fake. The word fake here mainly refers to the difference between human consciousness and material. Material is true, consciousness is fake. With the process of human civilization, people's consciousness has changed from simply reflecting reality to abstractly and systematically recognizing reality, and then forming theories and scientific and technological systems. In this process, the level of making fake things is constantly improving. All drawings, models and scientific theories are fake stuff. With the development of science and technology, fake things gradually develop from less to more, from simple to complex, from disorder to order, from fragmentation to systematic perfection. This is how human civilization evolved.
Scientific theory is fake, but it seems to be quite true, closer to objective reality. And philosophy is the most fake, because its theories are the furthest from reality, its concepts are largest and emptiest. Matter is real, and real things like fire and water were first taken as the Origin. But later philosophers regarded these theories naive. The Origin must be the most fake and abstract thing, it can not be real objective and concrete things.
Then let's talk about large. I saw a lot of tables and the concept of table came into being. Concepts come from abstractions of multiple things. Objects are true, concepts are fake. The concept has a certain extension, the extension of the concept of table is thousands of tables. The word table is very small, but it has a very large extension. All abstract scientific concepts have great extensions. The more abstract the concept, the larger the extension. The extension of furniture is larger than that of table because furniture is a more abstract concept than table. Compared with scientific concepts, philosophical concepts and theories have a larger extension, even covering the whole universe and all aspects of things. So philosophy is large and fake.
Then let's talk about empty. We know that the larger the extension of a concept, the less its connotation has. For example, the extension of furniture is larger than that of table, so the connotation of furniture is less than that of table. Tables vary in shape and color, but at least they all have legs and surfaces, which can serve as the connotation of the table concept. But furniture does not necessarily have legs and surfaces, so leg and surface can not serve as the connotation of furniture. Philosophy has the largest extension and therefore the least connotation. The Origin, Noumenon and Being by philosophers must be the emptiest concepts with all concrete attributes abstracted. Aristotle called philosophy as metaphysics, which means to surpass physics. The reason why metaphysics can surpass physics is that it reduces more thoroughly, abstracts more thoroughly and has less connotation than physics.