If you were the size of one of your cells, the body of a human would be in the area of fifteen to twenty Mount Everests stacked on top of each other. It would be a mountain of flesh at least sixty miles (a hundred kilometers) tall, reaching into space. If you are near a window take a second and look into the sky. Try to imagine this for a moment, a giant so large that passenger planes would crash against its lower legs, its head so far above you that you would not be able to see it.
