KDTime: Tech the Should Exist

This conversation is probably talked about a lot already but why not again. There is tech that was imagined that should exist in our real lives already. And even though some of the ideas that were created were portrayed in movies and tv shows there are still some that haven't been invented yet or some that have but we don't know that. The government doesn't want us to know about it. I'm not into conspiracy theories but wouldn't that be something, we find out that there is a time machine or a real life hoverboard and not the ones that are here with wheels. We should be gliding across water by now like in Back to the Future 2. Here are some of the tech items: Flying cruises like the one in the 5th element, Needleless injections like from star trek, Power clothing i.e. self-drying and self-tying shoes. Time Machines Rosy the Robot! There are plenty tech out there that was created but the ones that people have hoped for, the ones I still hope for haven't and some...