Well...genius or not, I just try to say that what Ken suggest is not "absolute", i.e., QZ inner power is not that "essential" to understand 9 Yin (it will help a lot but not in the level of "essential"). Say, other interesting exception could be ZWJ and I talk about him at the time right before he learn 9 Yang in the cave (i.e., after he got his medical skill). I also believe that many skillful Shaolin monks, ZZR and a few people in HSDS can learn and understand 9 Yin too (not immediately understand but after spending time learning).Originally Posted by Dirt
Maybe it would be correct to say that you cannot really understand 9 Yin if you don't know anything about a certain type of knowledge like medical theory or Taoist-based theory of inner cultivation.