In school it was tolerances and stress curves, a math problem to solve. Then I toured a site where a failed component had nearly killed a worker, and I stood there realizing the numbers on my screen end in real bodies. I'm learning, slowly, that designing this stuff isn't just engineering, it's a kind of moral discipline I have to carry every time I pick up the pen.
More people experience this than they realize.
You're learning that designing things that can fail catastrophically is a moral discipline, not just math.
If this sounds familiar, the Library can help you find the bigger picture.