>Waymo cars are still being supervised by human drivers nearly 100% of the time

That seems...highly implausible?

I mean that a human is ready to jump in at any point an "exception" happens.

Example: During parking, which I witness daily in my building, it happens all the time.

1. Car gets stuck trying to park, blocking either the garage or a whole SF street 2. A human intervenes, either in person (most often) or seemingly remotely, to get the car unstuck.