text: A big example is The subject of Leonardo da Vinci's, Mona lisa. Da vinci studied anatomy to thelp them paint facial muscles for paint special emotions. This subject is really intented to bring a smile to your face, while it shows just how this can computer can do. Your PC can't handle the use to decode Mona lisa smile. But this invent can write down simple instructions that "encode" differet emotions. For example, if you smile when a Web ad appears on your screen a similar ad might follow. But if you frown, the next ad will be different.