Introduction   This document is based on my current understanding of how BodyGen works and gets implemented.  If any information is inaccurate or I learn more about it, I will change this document to reflect that.   I'm going to start with a quote from Expired6978 to give an overview of what BodyGen is all about.  Lots of information follows. I'm going to attempt to break it down and explain it in this thread.   ****************************************************************   What is BodyGen a