The brain as a predictive engine and the concept of emergence

The article analyzes the theory of the brain as a generative system that does not passively receive sensory data, but actively constructs reality through predictions. The author distinguishes between key concepts: the Bayesian brain, predictive processing, predictive coding, and active inference, pointing out their differences in terms of implementation and explanatory scope. Perception is presented as a process of confronting prior beliefs (priors) with incoming stimuli, where prediction error serves to update internal models of the world. The text emphasizes that although this paradigm is influential in neuroscience and the philosophy of mind, it remains a subject of empirical debate, and the cognitive process is inextricably linked to the history and architecture of the organism.