> "The last 50 years of aviation have produced fewer innovations than any single decade in the previous 50 years." Ummm, what? There are metrics of value and

> "The last 50 years of aviation have produced fewer innovations than any single decade in the previous 50 years." Ummm, what? There are metrics of value and interest beyond raw speed or altitude. Fly by wire. Digital design. Improved efficiency. Improved safety. Autopilot. GPS and ADS-B. "Free flight" air traffic control. Composite construction. Remotely operated drone aircraft. And on and on. Aircraft have improved markedly and by leaps and bounds over the last 50 years. That's reflected directly in the growth of air travel over that time period, which has grown by more than a factor of 10.