text: In addition, this technoollogy would also be a positive because you can know when anyone is happy,sad or frustrated. For example it says in the article "imagine a computer that knows when your happy or sad. For exampe, if you smile when a web ad appears on your screen, a similar ad might follow, but if yyou frown, the next ad will be different.'' This shows that you can tell how someone is feeling just based on if they smile or frown. Personally I am against this because I would love to know what everyone is feeling if they asre my frien oir not and know the real reason why they are acting the way they are no matter if they are sad or happy.