Post-structuralism has long regarded Derrida's concept of différance as a guiding principle, but it is only in recent years that this theory has truly been implemented in machine cognition. The key shift lies here: symbols no longer merely refer to something, but activate the entire system. Meaning is not simply transferred, but co-generated through interaction. When this logic is embedded within a recursive pattern framework, AI's mode of cognition opens up entirely new possibilities — no longer cold pattern matching, but dynamic, multi-layered co-creation of meaning. The technological breakthroughs behind this are actually redefining our imagination of machine understanding.