I just listened to your interview on The Bad Roman Podcast, and my thought went to tolerance stacking in machining. This was apparently one of the problems behind the failure of the Remington R51 a decade ago. Geometric dimensioning and tolerancing can prevent this issue by taking all dimensions from specific datum points, but verification is a pain, and costs rise.

Even when we have discussions in English, people have different ideas in mind when they use the same words. Capitalism, democracy, Christianity, and even freedom seem to even contain diametrical opposites depending on who is talking or writing.