A thought for the philosophers and engineers:
is it better to design a plane, or indeed any machine, that adapts itself to the man, or is it better to design a machine and have the man adapt himself to the machine?
automation should help the man, not confuse him. see the film "FailSafe" for prophetic words of the pilot...(paraphrase) we don't fly the machine any more, it flys us. circa 1964