The love felt by cats for cardboard boxes will echo down the corridors of time; but other critters love ’em, too. Even wolf cubs. Even bunnies. And dogs of all ages can have a blast with cardboard boxes.
And you can, too, if you don’t care what people think.
I especially liked the one at about 0:18, where the cat popped out from behind the picture of a cat on that box. That was very clever.
I thought it was magic.
All magic, at one level or another, operates exactly the way that trick operates. 🙂