Jupiter's Going Excentric

i wanted to look at a blog post by an american astro physicist living in france named shan raymond, who i think reading blog on his web site was one of the reasons i ended up wanting to do this pair of episodes about jupiter. There's nothing in physics that prevents moons from having moons. But of course, every every step you go down that ladder of orbits within orbits, the maximum size of the orbiting object gets smaller and smaller.