Regarding "dark/rainy roads where camera images are useless", camera images are not the main input, but rather one of many (radar, laser, collision detection, e

Regarding "dark/rainy roads where camera images are useless", camera images are not the main input, but rather one of many (radar, laser, collision detection, etc.). It may be comparable to landing a plane automatically without visibility, as is commonplace nowadays... This, at least, isn't an issue...