ABSTRACT
Every medium whose effects, intended and unintended, we have thus far encountered in this book could be considered an auxiliary to, or amplification of, intelligence-to wit, ours. From speech itself to its early expressions in writing in various forms and mechanizations, through the revolution in photo-chemical reproduction of images and electronic transmission of information beginning in the nineteenth century and proceeding through the personal computer and all of its links and possibilities on our verge of the twenty-first century, each and every mode of communication has served as an amanuensis of the human brain, a third, extended hand for helping its dreams come true, for shaping its thoughts and launching them out and far and deep into the world where they can have the most impact.
