Funny since I am proclaiming that no single martial art is correct.Yet I do believe that a MMA is greater than Kung Fu in a real world setting. I think lack of reading comprehesion and oversimplying another's argument with grammar school comebacks solidifies a certain naivete. Now if you say Kung Fu is greater than a MMA than I guess we are in disagreement. Kung Fu is a part of MMA... Your original post didn't mention MMA at all, only Brazilian Jiu Jitsu as being better than Kung Fu. Which is essentially unprovable. I have not adapted my position at all. If anything, by bringing MMA into it, you are changing your argument. You cannot say that you can prove one solo martial art is better than another in a street fight, when you cannot rigidly use either art in a real street fight. Someone who tries using only BJJ in a street fight will get knocked out just as fast as someone who just uses Kung Fu. I still maintain that speed, suprise, and psychology are superior to any formal martial arts training in a street fight. Someone who studies a variety of martial arts, and utilizes the most effective techniques available (like Bruce Lee, who you summarily discounted earlier) is probably going to be better equipped in a real world fight than someone who is trained in only one style. This is where we agree.