It's also why airplane pilots do much more than they theoretically would have to – under normal conditions, a modern autopilot should be able to handle the whole flight without human supervision.
But then the human won't be reacting fast enough when he is needed to handle an unforeseen problem, so they're kept in the loop and active, just in case.
But then the human won't be reacting fast enough when he is needed to handle an unforeseen problem, so they're kept in the loop and active, just in case.