Nicholas Carr explains that how technology can help human’s life a lot more easier at the beginning of chapter. Carr points out that our brain has long-term, short-term and working memory, he states our brain turn into simple signal processing units, quick shepherding information into consciousnesses and then back out again. There is experiment between reading hypertext group and reading paper document group. The result is that paper document outperformed the hypertext group. Jakob Nielsen has been studying on people online reading, he mentioned when people read on the internet, they actually don’t read anything. Carr also points out that the working memory from our brain that able to hold a very small amount of information. However, when people who work with internet, the working memory couldn’t remember anything and lost the concentration. There are many expert’s research, experiment and statics in this chapter proves Carr’s point of view.