connectivity so this is a kind of thing that like you know again it's pretty basic in terms of like the high levels they're you know relatively simple facts and they don't require all that much in the form of reasoning or comprehension but there's still the kind of thing that we do give to is you know kids learning about the world and so you might think that like oh you know this is the kind of thing where to understand a mirror you really need to you know exist in the world and to you know learn about all these properties or to have a teacher