What would be a really cool invention.

To be honest we don’t need inventions we already have so many inventions. If we made any they would probably be used by only a few people since we have so many, but another really good invention could actually be a flying car I mean there aren’t many and it would be cool to have a plane and a car. but I already know that a flying car would be really expensive and high priced, so maybe we don’t need a flying car but so far, we have to much I think we don’t need anymore. Maybe in like 10 years we will get a new transportation system like a mini car kind of like a golf cart but smaller and its plastic like a real car we can also make it go like 40-50 mph on a sidewalk or something.