Six Epochs of Evolution

The six epochs are Kurzweil's taxonomy of universal history organized around the substrate that processes information at each stage. Epoch One: Physics and Chemistry—atoms, molecules, self-organizing structures. Epoch Two: Biology—DNA, evolution, organisms encoding survival strategies. Epoch Three: Brains—neural architectures, real-time learning, flexible behavior. Epoch Four: Technology—tools, language, externalized intelligence. Epoch Five: The Merger—biological and non-biological intelligence integrating. Epoch Six: Intelligence saturating the universe. Each epoch operates faster than the last because each substrate processes information more rapidly, and each transition occurs in less time because the accelerated processing enables faster development of the next substrate. The framework is cosmological, empirical, and predictive: it maps the past, organizes the present, and extrapolates a future in which intelligence—not necessarily human intelligence—becomes a dominant feature of physical reality.