It's as if his training had centered so much on 3d modeling and tangible tweaking as you go, that he hadn't learned to simulate anything with his thoughts before starting. He had to start building it to figure out what he meant. Incredibly creative person, out of the box thinker and big picture visionary, but with difficulty translating his ideas to verbal concrete steps. But nobody realized this, which resulted in a lot of frustration both ways:

"Why didn't you build what I said?" "I did. This is exactly what you said." "No it's not! I said x y z" "Yes you said x y z, this IS x y z" Silence. "Then that's not what I meant"

I deal with this all the time these days. If I ask for some clarification on scope, I usually get these ambiguous answers with fantastical ideas usually concerning some dreamed up impossible to implement tool that people assume is now possible because of AI, because everything is possible to them now!

Garbage Invoker, Garbage Output