Autonomous vehicles, my eye

We got stuck behind a school bus driving out of our neighborhood on its ice-covered streets when something odd under the chassis caught my eye. It was, of course, automatic snow chains in action, which you can also view here and here.

Automatic snow chains! These are the days of miracles and wonders! Why have I never heard about these? Why are the media going on and on about self-driving vehicles when we have already achieved the winter-roads-condition eschaton?!?

We are living in the golden age of transportation, people.