Had a great video Q and A with Derek Osborne today. He talked a little about the bouncing ball and contrast. Basically he broke down the bouncing ball and it came down to everything is based on the principles of the bouncing ball. The hips and the shoulders move like a bouncing ball. I think one of my fellow students, Ed Sutherland summed it up nicely though, just keep in mind what it is and what it does. I think that can be applied to anything in drawing and animation! Thanks for the inspiration.