Let engineering team work as engineering team
Are we seriously arguing for management by gut feeling over numbers in a thread about air traffic control?
ROI is a weighing of costs and benefits. It isn’t inherently short or long term. I can use 19th century physics to prove no plane can fly. That doesn’t mean we conclude physics is fucked, never do physics again.
If you have to analyze the weighing of costs and benefits, you are showing there is one point were you will consider safety too expensive, or some acceptable accidents (as long as it is not someone you love) in the long term.
Yes. This is engineering. You can’t engineer to infinite safety without infinite cost.