Heavier Thoughts on Gravity

In an amazing coincidence, at least from a personal point of view, after posting The Gravity of the Situation, I went to GalaxyFest and was fortunate enough to be on a panel about how Science Fiction influences science, and vise-versa. Also on that panel was Scott M. Tyson, author of The Unobservable Universe. I have not had time to finish Mr. Tyson's book yet, but I will. And I can't promise I will understand it, but then I don't really get the currently held theories either. But to my point! I just got done harping that we do not know what gravity is,…