We've always had ideas about the world.
First there was the rock, the stone of the cave. The powder of the rock gave us colour, every surface was a place to make our mark. We then painted our stories. A hole in the wall made an upside down image of the world and then light was painting for us. A piece of glass cleared our stories up a bit. We mixed things from the earth made to change in light and then we could tell our stories many times. We made boxes with glass so we could carry this new power. Much has changed and we have come some way.
Now look at us.