Wow, it is a lot of fun to play with that visualization. It made me wonder what the probabilities of orbits changing would be, on various time scales. For examp

Wow, it is a lot of fun to play with that visualization. It made me wonder what the probabilities of orbits changing would be, on various time scales. For example are there any chain-reaction type gravitational effects that happen to concentrate elaborate complexes of gravitons, every now and then? Or would a more prosaic event naturally hurl a few of these toward earth every fewK years?