I stole an idea for a game which has yet to be implemented by the person who briefly mentioned it a couple years ago. It inspired me, and because the idea was n

I stole an idea for a game which has yet to be implemented by the person who briefly mentioned it a couple years ago. It inspired me, and because the idea was not some highly detailed plan, I know my conception of it will be completely different from that of the original idea-haver. People talk about idea vs. implementation, but the missing component is the vision that drives and expands that initial idea. That's obviously true in anything related to creative work, but I think it holds true almost everywhere, except in utterly trivial cases.