text: While having a technology that read peoples emotional expressions would futher ruin the interactions between humans, It will be very costly to make such devics and put them in every classrooms. It would just be a waste of money and resources. In the article it says "the process begins when the computer constructs a 3-D computer model of the face; all 44 major muscles in the model must move like human muscles" it also says "your home PC can't handle the complex algorithms used to decode Mona Lisa's smile". The process of this techonology sounds like it will be expensive to build such a high tech decoding. The article also says our PC's is not complex to handle this new techonology. So this new techonology must have complex algoriths to be able to decode a smile. Which will be expensive to make.