In the future, education—from early childhood through adulthood—will look fundamentally different from today. Math and science courses will hold the same status as physical education: their role in imparting specific knowledge will diminish, evolving instead into mental fitness training. Just as PE builds physical strength and health, these subjects will primarily sharpen cognitive agility and problem-solving muscles. In the Algorithmic Age, the core mission of education will shift toward teaching and mastering an entirely new symbolic system—one optimized for thinking with and alongside intelligent machines. This transition mirrors the leap from the Religious Era to the Scientific Era. In the Religious Era, the curriculum centered on sacred texts and doctrines; in ancient China, that meant the Four Books, Five Classics, and eight-legged essays steeped in Confucian tradition. Today's math and science curricula are likewise products of the Scientific Age. Looking back from the Algorithmic future, our current STEM-heavy education may appear as quaint and dated as we now view those ancient scholarly traditions.