What AI truly changes is not a single industry, but the way everyone uses their brain. In the future, repetitive tasks like searching, organizing, summarizing, and basic output will increasingly be handed over to AI. What truly sets people apart will no longer be who remembers more knowledge, but who can ask better questions, make more accurate judgments, engage in deeper thinking, and continuously integrate AI into their workflow, making it their second brain. The competition of the future is not about who works harder than AI, but who can collaborate better with AI than others—letting machines handle information processing while humans focus on creation, decision-making, and solving truly important problems.