Carr's essay's goal is to enlighten the reader on one talent that he feels is undervalued: reading. He argues that the internet is rewiring the human brain. The internet has caught our attention and changed our mental process.
The purpose of a text or an author is identified via the central idea of that text or author. The central idea carries the message that the author seeks to communicate. Hence, their key purpose.
It is to be noted that sometimes the purpose of a text could be:
Learn more about purpose at;
https://brainly.com/question/18533350
#SPJ1