> it flags it so that it can be repaired and all other cars avoid it automatically Doesn't help if you already have a multi-car pile up collision. OP said bump

> it flags it so that it can be repaired and all other cars avoid it automatically Doesn't help if you already have a multi-car pile up collision. OP said bumper to bumper at high speeds. Anything goes wrong and physics take over. > Very true. People also own horses and burn candles, but these are not our primary means for transportation or lighting. Horses very much still appear on roadways today. The idea that 100% of cars will be AI in the next 50 years I don't think is based in reality. Let's say we somehow get to a point where all cars have a switch to go from AI to not; so for example when on a highway where AI would shine, drivers could switch. What happens when a driver does not switch on the AI system? This is all to say the idea of that bumper-to-bumper driving at 100 mph with very small cars is snake-oil. > but these are not our primary means for transportation or lighting Not our primary means, but still a means and used. Again, this goes to the point, if you want that massive efficiency of AI cars, you need 100% adoption, not a single car in a convoy can be human operated. Alternatively, if the AI cars are smart enough to realize that another vehicle is human operated - do the AI cars slow down the entire convoy and then create adequate following distance? At that point, is that _any_ different from driving today?