Do you have a invention which you want to uninvent? For me, the answer is the cars. I prefer to uninvent cars because of several reasons.
First of all, most of the cars exhaust gas that makes a big problem of air condition. Because of the convenience, people now use cars more and more frequently. The gas emission do very bad of our environment. Another reason is that cars make many crashes every year. So many people die or get injured in it. It is not safe enough to drive a car. In addition, if we have not invented cars, we may use bikes to go outside. That can lead us to exercise regularly and keep healthy.
It is not realistic to live without cars today. But we can image if we have not invented cars. Maybe we could live in another different world.
