When I had moved to Las Vegas - a mecca for Mixed Martial Arts (MMA) - I was greeted by neighbors who wanted to introduce themselves and inform me about their local Esports business.      They were a young couple asked what it was that I did too.  I mentioned my interests that included rock climbing, living in places like Thailand, the Philippines, and Holland.  I also mentioned I was involved with the martial arts. At this point, the young lady expressed that her Dad was an Instructor at a local MMA gym and was excited to ask me this question:      “What do you think is the most realistic martial art?”      This was obviously a lead-in question and one that typical MMA types (especially if you have seen some of the Gracie Jiu-Jitsu commercials promoting it as a self-defense system).    Because of my background and education in the martial arts, I already knew the answer to the question she was so eager to answer for me.  But I didn’t want to spoil her fun or insult her father by explaining my view.  So…