Is that:

- I would be stunned if we agree to eliminate human drivers from 100% of roads in the lifetime of anyone alive today.

or

- I would be stunned if we agree to eliminate human drivers from 10% of roads...

...or is there some other percentage to qualify this? I guess I wouldn't expect there to be a decree that makes it happen all at once for a country. Especially a large country like the U.S.. More like, some really dense city will decide to make a tiny core autonomous vehicles only, and then some other cities also do years later. And then maybe it expands to something larger than just the core after 5 or 10 years. And so on...