Half a century after Apollo and Concorde we can neither reach the moon nor fly faster than sound: the future stopped getting faster.

In 1969, we landed on the moon for the first time and the same year we flew Concord, the faster than the speed of sound airliner. The future was supposed to be faster and better. where we're supposed to look forward to innovation in air and in space. And yet, half a century later, we can't go to the moon and we can't fly faster than the speed of sound.