Dave Lemen

"There is no bookshelf"

Clay Shirky: Ontology is Overrated: Categories, Links, and Tags.

It comes down ultimately to a question of philosophy. Does the world make sense or do we make sense of the world? If you believe the world makes sense, then anyone who tries to make sense of the world differently than you is presenting you with a situation that needs to be reconciled formally, because if you get it wrong, you're getting it wrong about the real world.