text: One way the use of this technology is not valuable, is that this app could be a total joke. There is a posibility that this app could be accurate, like in paragraph 3, it says, "Dr. Huang relies on the work of phychologists, such as Dr. Paul Eckman, creator of FACS (Facial Action Coding System)", but in reality, we really can't know. Let's say you download the app and use it on a friend to see how they're feeling. They put on the brightest smile you've ever seen, and the app tells you that the person is happy. In reality, they're the most miserbale people you've ever met. This app may work, but at the end of the say, no one knows what anyone is going through and this app isn't going to change it.