It is difficult to escape the influence of television. If you fit the statistical messages, by the age of 20 you will have been exposed(11)at least 20,000 hours of television. You can add 10,000 hours for each decade you have lived(12)the age of 20. The only things Americans do more than them watch the television are work an sleep. Calculate for a moment what could be done with even a part of those(13).Five thousand, I am told, are what a typical college undergraduate(14)working in a bachelor's degree. In 10,000 hours you corded have learned several languages fluently, you could be reading Shakespeare in the(15),and you could have walked around the world the world and(16)a book about these hours. The trouble with television is(17)it discourages concentrations. Almost anything interesting and rewarding in life(18)some constructive effort.The dullest, the least gifted of us can achieve things that seem remarkable to those(19)never concentrate on anything. But television encourages us not to make any(20).It makes the time pass without gain.