No More Learning

According to the analytical stress model, which had just been discovered at that time, technical prostheses of a sensory organ - in other words, media - were said to have           a natural or physiological function, and the biological function itself acted as the subject of the replacement: an eye that is armed with lenses or glasses (a beautiful expression) performs a paradoxical operation, according to McLnhan, as it extends and amputates itself at the same time.