You look at it and you see it has four legs, the machine doesn't know if it's a snake, if it's a tree, it doesn't have any idea what it looks like, but it's going to try to find that out.
Mirándola sabes que tiene cuatro patas pero la máquina no sabe si es una serpiente, un árbol, no tiene ni idea de cómo es pero va a tratar de descubrirlo.