The two emotions, loneliness and boredom, are closely allied. They are also both characteristically modern. The Oxford English Dictionary's earliest citations of either word, at least in the contemporary sense, date from the 19th century ... Loneliness is not the absence of company, it is grief over that absence. The lost sheep is lonely; the shepherd is not lonely. But the Internet is as powerful a machine for the production of loneliness as television is for the manufacture of boredom. If six hours of television a day creates the aptitude for boredom, the inability to sit still, a hundred text messages a day creates the aptitude for loneliness, the inability to be by yourself. Some degree of boredom and loneliness is to be expected, especially among young people, given the way our human environment has been attenuated. But technology amplifies those tendencies. You could call your schoolmates when I was a teenager, but you couldn't call them 100 times a day. You could get together with your friends when I was in college, but you couldn't always get together with them when you wanted to, for the simple reason that you couldn't always find them. If boredom is the great emotion of the TV generation, loneliness is the great emotion of the Web generation. We lost the ability to be still, our capacity for idleness. They have lost the ability to be alone, their capacity for solitude.