Self-driving cars have been tested on public roads for years now using
human safety drivers in the front seat.  In some cases the cars are
actually giving free rides to passengers, as Uber does here in
Pittsburgh.

But now Waymo, Google's self-driving car division, is testing its cars
in Chandler, Arizona with *no* humans on board.  A video of one of these
cars making its way around suburban streets has surfaced on YouTube:

  https://www.youtube.com/watch?v=t_1YLHW65M8

Here's a news story about Waymo's announcement of the service last month:

  https://techcrunch.com/2019/10/09/waymo-to-customers-completely-driverless-waymo-cars-are-on-the-way/

And here's a story from a few days ago about a reporter's first
human-free ride:

  https://techcrunch.com/2019/11/01/hailing-a-driverless-ride-in-a-waymo/

We really are living in interesting times when all of us (or those of us
who venture out on public roads or sidewalks) get to be part of large
companies' AI experiments.

New rules of auto etiquette: please don't bully the self-driving car.

-- Dave