In the 90s part of Germany's air traffic control software ran on Emacs
> In Germany, a Herr Doktor is always right (they have forgiven Moses by now for not having space on the stone tablets, but it really is the 11th Commandment)> Pro tip: don't look in the kitchen when governments brew up safety critical systems. I was scared to fly over Germany for a while...The author has a lovely writing style for this kind of content.