So, I live in the corner of Austin (SE) where a lot of the Waymo autonomous cars are based, so they're on the road next to me a lot. At first, always with a hu

So, I live in the corner of Austin (SE) where a lot of the Waymo autonomous cars are based, so they're on the road next to me a lot. At first, always with a human in the car, but lately without. So far, they don't do anything too crazy. What I am curious about is what happens when they become numerous on the road. Rumor has it that an earlier attempt in downtown Austin resulted in gridlock, with a bunch of self-driving cars stuck. In a situation like that, humans are more likely to figure out that they need to break the rules in order to break the gridlock (although it certainly can happen with human drivers, but in almost 30 years of driving in Austin I've never experienced it). For obvious reasons, self-driving cars are not usually given this kind of programming. Of course, if they're always a small percentage of the cars, it's not really an issue.