I would like to share with you a video that is not about air traffic management but its message is extremely relevant for global ATM as well as for many other fields. Although the video is apparently not completely new, its numbers are a revelation and very thought provoking.
Click here to watch.
This video now in its version 4 I think is quite old, I remember first seeing it in 2009 through an email sent to me.
But yes I find it incredibly real.