In the 2010s AirBus came out with a mega-leap forward in commercial aviation. By modernizing their a320 platform they could equip it with efficient engines and a computer system that made it easy to fly. The resulting savings from lower fuel costs and cheaper pilot training would be a huge win for the industry. But not for industry leader Boeing. Boeing was still milking their cash cow (the 737). But this new threat to their position as industry leader couldn't be ignored. The Boeing...