Business people should understand, at a high technical level, how their products work and what they’re actually asking to implement.
I’ve worked with many great business analysts and product people and consistently the best ones are the ones with the “engineer brain”. They might not know how to read even a single line of code, but they understand software products from their pieces. Those people consistently propose high-quality and feasible solutions. Other business people do not.
As developers, we are expected to constantly think on our feet and adapt. We learn new products and methods on practically a weekly basis. But for whatever reason, the business folk are not even expected to understand the product they help build. There’s such a large disconnect there between dev and business.
If higher-ups have no technical insight, round up and give them two numbers: $$ if a bad thing happens, and $$$$$ if the worst thing happens.
The director of my department kept asking, "But do we HAVE to do this now?", so my final answer was this:
"Do we _have_ to? No, but it's like a bridge. Bridges have an expected lifespan when they're built, and they're supposed to be torn down and rebuilt after that. It's not a HARD limit, though. The bridge doesn't immediately collapse the day after its lifespan, but there are fault accumulating. Metal fatigue, erosion of support material, and other things. Commuters can't tell the bridge is past its lifespan, and they'll continue crossing it every day without issue. And then one day the issues will accumulate to the point that the bridge fails and people DIE. That's the situation we're in with this stack. It will continue to function just fine until the day it doesn't, and on that day I won't be able to tell you how quickly we'll be able to recover the application stack, if at all."
That FINALLY got through to him.
If someone says that something is a risk and we should address it, I don't expect a director to ask for a specific date the risk to become a disaster. Instead, he should just add it to some todo list and slot some time to analyze it and and budget resources. AKA, doing some "management" work. You shouldn't have to explain his job. You didn't need to learn semiconductors physical properties to know that storage can fail and you need to do backup.