Planet of the Walking Dead

The brain has gone through three stages in the evolution process. The first stage is based on instinct, which is often called the "crocodile brain" - only the most basic instincts such as eating, drinking, sleeping, mating, etc.; The second stage is emotion, which is more advanced, and is called the "monkey brain" - including emotions such as joy, anger, sorrow, and joy; the third stage is wisdom, logical reasoning, and judgment, which is the cerebral cortex of humans. In a sense, human civilization is built on the cerebral cortex. However, looking at the more distant future, humans will eventually develop a fourth, more advanced brain - the mysterious brain. Humans who have evolved mysterious brains are emerging humans, while those who have not evolved will become useless people, and useless people are destined to become - the walking dead!