I still don't understand why this is a hard problem. You can make radars and lidars cheap. You can confirm radar findings with an ultrasound. If the global pr

I still don't understand why this is a hard problem. You can make radars and lidars cheap. You can confirm radar findings with an ultrasound. If the global priority was safety at all costs, a lot of this stuff could probably be solved with deterministic algorithms, and some mandatory changes to manual cars(Like an unsafe distance warning radar).