AirBus seem to make changes to the software every time there is an incident/accident. Surely the question must be.....WHY was it not designed properly in the first place? Altho the A320 was the first FBW airliner and a certain amount of "adjustment" was needed from time to time, surely now that it has been around for a long time and is a mature design, was it perhaps designed initially around a flawed principle? The B777 does not seem to have these same type of "problems".