The aircraft that we fly today are much different from the aircraft we flew when I started my career. The aircraft are complex man-machine interfaces with very complex computer systems that assist the pilots and that have proven over time to reduce the incident and accident rate.
That said, the crews, the pilots always need to be aware of how those systems interact with the primary systems of the aircraft. I think that's something that will continue.
Aircraft are extremely sophisticated, so the human factors piece of it is really something that the crews work with every day. One of the primary focuses in the extensive training has become human factors and how the aircraft is handled by the crew and how the crew handle the aircraft in terms of understanding it.