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After 50 million miles, Waymos crash a lot less than human drivers
(arstechnica.com)
This is a most excellent place for technology news and articles.
The claim is that the remote operators do not actually drive the cars. However, they do routinely "assist" the system, not just step in when there's an emergency.
I think they've got 1 person watching dozens of cars though, it's not 1 per car like if there was human drivers.