Object attributes

My daughter, Selena, loved Julia Donaldson's books. I usually read her a story every night. Some time ago, I was reading her one of the Gruffalo series books called The Gruffalo's Child. In that book, the Gruffalo's child asks about the big bad mouse who lives in the snowy forest. The Gruffalo describes the mouse, saying he is strong, his eyes are big, his tail is very long, and he has got whiskers thicker than wires. Then, the Gruffalo's child goes out to find this mouse on a snowy night.

During his journey, he finds animals that match one or a few of the characteristics that his father had described, but none matches all of them. In the end, only a shadow of a small mouse matches the characteristics of the animal he was looking for, not a real living creature. Transposing this idea to the world of objects, we can say the mouse is an object. The Gruffalo describes it to his kid using characteristics, which are similar to the attributes of...