re: A simple attempt at conveying the scale of the universe...
It always ticks me off when I read or see a sci-fi story where some alien spaceship has just arrived from the next galaxy. The vast majority of people have no concept of the size of the universe. They don't really know the difference between the solar system and the galaxy, or how really staggering the distances are. I know they are told over and over, but they still don't grasp it.