A great invention: A chip to put on/in everything you own that is numbered separately with its own unique code so if you lose it, you can type the number into your cell phone and the phone will give you the item's exact location. That would make me happy. XD
We build cities for millions to live in, towers to touch the skies on, machines that make us ten times as fast, strong and intelligent, and have even left our home planet for a while... ... And then this happens. We are geniuses.