And to complete the thought: the main reason why human pilots are still on all those aircraft is because... the automated&#x2F;computerized systems still can&#x27;t really make decisions that match what the humans can do. So the computer is really great at maintaining heading, altitude and speed for a set period of time, but really bad at deciding which heading, which altitude and which speed, and for how long (the best you can do that I&#x27;m aware of is have a human lay out the desired route and punch that into the FMC, and then all bets are off if conditions change along the way, and the humans will have to decide what to tell the plane to do again).