Sometimes I have streaming shows on my laptop as I work on my desktop. I could be watching anything from anime, to Community, to Modern Marvels. This time I chose something popcorn-light: Fight Science, the most recent in a long series of shows explaining the physics of martial arts. It turned my head when I heard “Wolff’s Law.” They were talking about how the bones of these martial artists have remodeled to be stronger due to repeated physical stress from training. It’s all connected, people.