text: imagine a computer that knows when you happpy or sad. Technology can make thing better but some technology can make thing worse.      They say the facial expressions for each emotion are universal because even though individuals often show varying degrees of expression, the new emotion are facial movements for example the painted face from the Mona Lisa, we can identify a lot emotions as Vinci's masterpiece. Each expression is a neutral face. Of course, most of us would have trouble actually describing each facial trait that conveys happy,worried,sad,etc.