text: In my opinion people don't need cars if places are two blocks away. i see it as an acsesorie, Or another toy to play with, But this toy has a cost. If the world for at least one day stoped using cars , They will under stand what is is to live in this small town of 5,500 people are who happy with there life style, hopfully they will understand the advantages towards not having a car.                                                                               I like this feature. I'd consider it very helpful on both computers and robots. Regarding robots, I wonder if Baymax from Disney's "Big Hero 6" had something like it. He was like a robotic nurse as explained by the main character. However, it wouldn't work in concrete tunnels.