In the chapter 7 “The Juggler’s Brain” by the author Nicholas Carr is going to tell us the internet is mind altering technology. The sensory and cognitive stimuli offered by the internet which follow the same repetitive and addictive patterns to cause change in the brain. In the article, Carr shows some ways to prove that. For example: First, the Internet’s design is addictive. Second, the Internet is a physically intense and encompassing experience to a degree we do not often realize, and the cognitive effects of the Internet are also more profound than we might realize. Third, the Internet limits our ability to think deeply and people use Internet without interface requiring constant choice. At last, people can be distraction by overload of incoming information which impedes our ability to distinguish important information.