“how the hell” is the fact that flight paths are ENTIRELY PRE-PROGRAMMED AND SCHEDULED. This is trivial.
“Technology has gotten so precise that it is possible to sync the image on an enormous video screen with the movements of an actual, real life, giant flying machine carrying hundreds of human beings thousands of meters up into the air. This is trivial.”
It’s absolutely not trivial, because it means that a flight somehow took off when scheduled.