> is that idea-guys' ideas crack when meeting reality.

This is definitely the hardest nut to crack. I worked on a product a while ago that needed to track maintenance periods on equipment quite carefully and then use that to filter data to provide insights about how it was performing. The 'user story' was light on detail. As we got into it, there were tons of questions about how to deal with source data that was often inconsistent or patchy, time zones became an issue because much of the data we received wasn't matched correctly to their local time (customers fault not ours) and our ideas guy just couldn't deal with it - "make it work" - when ultimately they were business questions that needed answering, not just pure software tasks. AI is so sycophantic it'd just go off and write something.