content: Plenty of people were probably thinking the same thing at the advent of the automobile, and of course they were right - as are you. But I think it's not so relevant as the fact that these robots will also one day be taking care of labor of all sorts in the world. One day, probably in your lifetime, we'll even have these robots doing work such as surgery. The freedom this will entail humanity is going to open up a world unlike any before - probably after a very bumpy ride between here and there, but that's more of a problem with inertial leadership than the technology.