text: Finally, yes the technology is worth a big margin but its worth to have the help we can all get to help us know many. In my opinion it'll be a better way to learn/read better on our emotional expressions because you"'ll have more information and could know more about everything you want or need to know about the expressions. According to the Facial Feedback Theory of emotion, moving your facial muscles not only expresses emotions, but also may even help produce them. We humans perform this same impressive "calculation" every day, for instance, you can probably tell how a person is feeling simply by the look on their face.           Have you ever thought you seen something and you look really close and it's something else? Or have you thought something was one thing but it was different? That's what they think happend with Mars. They think there is aliens and that aliens are making faces.