There is no such a thing as a stupid question.
EVER!
The world is wrought with complacent ignorance.
Too many smart people live in fear of conveying that there might be something they don’t know.
Don’t be afraid.
The right question shows insight.
It means you are thinking.
It shows that you are humble.
It displays a thirst for knowledge.
I always respect a good question and I always ask questions about things I know nothing about.