text: In conclusion, driverless cars seem like a waste of money and time. We have working cars that have been working fine for years. So why waste money on cars that are dangerous, not reliable, and expensive?The use of the new technology called the Facial Action Coding System, that reads the emotional expressions of students in a classroom is valuable. Our world today mostly depends on computers and machines to do most of everything. Many inventors and scientist have discovered so many technological things and as the years progress, we get smarter and smarter and come up with more discoveries. Since we depend so much on technology, its a norm to use it, so mostly everything scientist, inventors and doctors come up with is valuable or useful.