Why would you believe a self-avowed pussy-grabber, someone who lies every time he opens his mouth, and someone who has made it his profession to undermine Democracy wherever it exists in the world, especially in the U.S.?
@Russ Brown stated "The world still runs on FORTRAN." v4, to be more exact. The ORNL (Oak Ridge National Laboratories) created a very great many routines for mathematical processing that are still used in many C[++] programs.
@ThinkingGuy stated "People seem surprised that an aircraft designed in the 1980s uses technology from the 1980s." It should still be using Loran navigation?
@Adi Rabadi opined "... send the bill to the passengers that caused the turn around." That might require a class-action lawsuit from both Delta and the other passengers that suffered from the KATL arrival delay, but some ACLU lawyer might be willing to take the case.
I have never seen such a dense concentration of MAX as at the east side of KMWH, Moses Lake WA. The diurnal temperature variations there are perfectly conducive to condensation if any tank linings are exposed.