> If you are basing something on 10 incidents but it's 50% of the total, it's still terrible accuracy.

The ratio of 3.2 trillion to 56.7 million, which is already incredibly generous to Waymo's position, is 5 orders of magnitude in difference. So any calculations from Waymos data are going to be insanely inaccurate and not something you can extrapolate from.

The main, and most obvious case, evidenced by this, is Waymo does not operate where snow falls. Human beings do.

We're missing so much of the picture I don't think you can say Waymo's are 75% less accident prone, or 80% less likely to hit a pedestrian. Those are just nonsense numbers.