text: This technology can be used for many thing and in a very good way. For ecample like the author wrote in the article. They can make changes in many things by seeing the emotions in a sudents face. For example in some ones homwork, in a book there reading. By reading there face expresions they can use that technology for the good of a person. They can find new things and make changes. So the things that are boring or sad or anything that is making someone not be intirested in something make them more intiresting. In my opinion people that make stories or news papr aricles want there work to be seen and get many reviews. So by figuring out what some one is really intirested in is a good way know. Many people like new developments. If this type of work becomes more advanced it could be something good.