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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

When first published, Marshall McLuhan's Understanding Media made history with its radical view of the effects of electronic communications upon man and life in the twentieth century.

Each time history repeats itself, so it's said, the price goes up. The twentieth century was a time of runaway growth in human population, consumption, and technology, placing a colossal load on all natural systems, especially earth, air, and water — the very elements of life. The most urgent questions of the twenty-first century are: where will this growth lead? can it be consolidated or sustained? and what kind of world is our present bequeathing to our future?In his #1 bestseller A Short History of Progress Ronald Wright argues that our modern predicament is as old as civilization, a 10,000-year experiment we have participated in but seldom controlled. Only by understanding the patterns of triumph and disaster that humanity has repeated around the world since the Stone Age can we recognize the experiment's inherent dangers, and, with luck and wisdom, shape its outcome.