Re: Who - "invisible" objects
"your AI realises too late that the patch of blue sky aheah is actually the side of a light-blue truck."
The Tesla accident with the white truck as with other "invisible" cars could be easily avoided by mandatory markings/GPS location, like reflective bands or rear reflectors are today (but adapted for autonomous viewing systems). This will go a looong way towards making autonomous driving easier and safer.
Come to think of it, pedestrians should also wear visible means, something that is sadly overlooked today in the name of fashion. When I see bicycle riders and pedestrians crossing in all black clothes at night in the rain I'm asking myself if they are intentionally suicidal or simply do not care to live.