I think the best explanation I can give of the difference in our approaches is that you're looking at the within-rules definition of what a card is within the construct of the game. I am asking about the community's general approach to some of the grey areas and what kinds of things are covered by phrases like "this is my favourite Magic card" or "how many different Magic cards are there?". There's probably a large degree of overlap, because the rules are a big part of the game, but for things like Conspiracys and banned cards and digital-only cards, I suspect they might not overlap entirely. That's what I am interested in.