Waymo has a 'perfection' problem, as author Malcom Gladwell describes it. That's bad news for self-driving cars but good news for the rest us.

Waymo, Tesla, and Zoox each take a unique path in the race to dominate robotaxis—with major differences in safety, design, and autonomy strategy.

Waymo's robotaxis began carrying passengers through parts of Atlanta on Tuesday in an expansion of a partnership with Uber that began earlier this year in Austin, Texas.