> * Let the human do all the driving and have the robot jump in whenever the human makes a mistake.* Because when the human disagrees with the machine, the mac

> * Let the human do all the driving and have the robot jump in whenever the human makes a mistake.* Because when the human disagrees with the machine, the machine is usually the one making a mistake. It might prevent accidents, but it would also cause them, and you lose predictability in the process (you have to model the human and the machine).