Are you hinting at the fact that we're missing a giant ledger in which the paper is documented as being Really Really The Really Most Real And Authentic Paper? Since that ledger isn't rooted in anything else than a bunch of people's feelings about it, I think it's fine to leave it out of the analogy.

So yeah, NFTs are like the parent comment explains. Plus that ledger that has no actual meaning.

Edit: I'm not underestimating that giant ledger's technical solution for verifying the piece of paper. All I'm saying is that it doesn't fucking matter.