It doesn’t matter how the framed reference goes about its day, we have no qualms whatsoever. Any encyclopedia entry stuck up on the wall can illuminate a page’s worth of facts about the natural world, and there’s no way we’re taking that for granted. The planets are in orbit, the rabbits are procreating, the pole beans are shooting tendrils, the rest of the civilized world sticks its neck out for these poor voluminous library dwellers.