[dns_snek]

Yes but what I was getting at is if the autonomous system is allowed to disengage every time it encounters a "difficult" situation (as Tesla "FSD" does) then its safety record can't be compared to human drivers even in otherwise comparable road conditions.

Human drivers don't get the luxury of disengaging and having a more skilled driver take over when they're struggling. If Tesla FSD drives for 100km before overwhelming glare causes the system to disengage, that'll go on record as "100km driven without accident", but when the human driver is blinded by the same glare and ends up in an accident 5km later, that'll go on record as 1 accident per 5km driven for the human driver.

[jfoster]

OK, but if the system avoids an accident by not driving in glare whereas the human doesn't, that is still one accident avoided, isn't it?