> I remember Google's early self driving cars and everyone thought they were only a few years away from being practical.
...and that turned out to be a little optimistic, but they really are "there" now IMHO in San Francisco. I rode in one for the first time last year. Subjectively, I felt safer moving through San Francisco traffic in the self-driving car than I do when I'm driving there myself or when I'm being driven by a human in a Lyft. It was attentive, cautious, and smooth, and I got there in a reasonable time with no fuss. And crucially, I see a notable lack of stories about it making dangerous decisions, despite the total passenger miles.
Why is Waymo there now and not Tesla? I think a combination of factors, including: (a) the head start, (b) the willingness to use LIDAR and RADAR to overcome limitations, (c) the focus on self-driving (they design and operate self-driving systems; they don't manufacture electric cars), (d) the service model (easier problem to focus on a mapped region with good weather and monitor everything vs. sell a car expected to work anywhere/anytime without (as much?) telemetry), (e) frankly, caring more about safety and less about hype. Of those differences, the "head start" one is shrinking relatively speaking, but the others will likely remain significant enough that I don't expect to trust Tesla's systems any time soon.
