I am now picturing a mile-long phalanx of self-driving cars gaily careening off the end of a destroyed bridge because the map and road signs disagree and they'r

I am now picturing a mile-long phalanx of self-driving cars gaily careening off the end of a destroyed bridge because the map and road signs disagree and they're all "going with the flow". Or to put it another way, if all your friends drove off a bridge, would you?