> the only way to judge the competence of their driverless systems is to compare where they are today with were they were 10 years ago when they started out. H

> the only way to judge the competence of their driverless systems is to compare where they are today with were they were 10 years ago when they started out. How does a self-relative measure capture the absolute goodness of the vehicle? I'm much better at skiing than I was two years ago, but I'm not ready for the Olympics. My history is irrelevant to my ability.