Warhammer 40K and the Problem of Legacy Systems

In the grim darkness of the far future, there is only technical debt.
If you’ve ever stared at a decades-old code and thought, “we can’t touch that, it’s sacred”, congratulations, you’re already living in the 41st millennium.
The Warhammer 40K universe is a place where humanity’s technology has stagnated for ten thousand years. Once upon a time they innovated, developed marvels beyond our wildest dreams. Now, they worship their machines like gods. Engineers chant litanies before deploying code. No one knows how anything actually works, they just hope it keeps working.