Mark these words. In 10 years time we'll still be hearing the same comments about Waymo & their competitors because there still will be certain combinations of passenger, route & conditions that Waymo will refuse to take without a safety driver along.

But since Waymo will handle the vast majority of rides we'll just tune out those comments.

Handling all rides & conditions is a very hard problem and it'll take decades to solve.

But scaling from "a few" to "most" is a much easier problem and one that I have confidence that Waymo will achieve. And "most" can be very useful & profitable.