You can see Tauri blindness to structure in this comment of functor7 where he's totally blind to the fact determinants ARE structures. They're the sum of all solutions to 'N rooks on a chess board where no rook can take another rook'. Functor prefers to say determinants are accounting since the number of beans in a set are more important to Tauri than structures. Tauri love their cans of beans and bean-counting.