text: It's interesting to think ahead and create something big that no one can do. In paragraph 3, the author says, "The process begins when the computer constructs a 3-D computer model of the face; all 44 major muscles in the model must move like human muscles." The 44 muscles can tell how the human is feeling, by seeing how the person is moving. For example, when the person is moving really fast, it means that the person might be angry or aggressive. But when a person is moving slow, it means that the person is sad or depressed.