aside from the fact that aircraft have much fewer potential problems than cars, 300 million people give entirely their trust and live to the computers that fly modem aircraft. The problems of processor capacity has been solved! Embedded  computers in up stream devices will pre-process the data in real time and deliver a smart data stream which is parsed before it hits the central program. Fear of change has killed many great ideas! Nicola Tesla was destroyed by Edison, Standard Oil stopped the development of an alcohol fueled Ford. Fear however is often surmounted when the benefit to the greater whole outweighs pressure of the short sellers  and the majority adopts the new paradigm.  Hay Jim Keller! would love to chat pm me .