So, you don't think you're on a level with "Bushi" Matsumura, security agent for the king of Okinawa, who engaged in mortal combat with pirates? Or Motubu who vanquished his opponents in dozens of street fights? Or even Shimabuku who studied with the masters of Shorinryu, Gojuryu and Tomari-te and had some street creds of his own? Gee, Bill, maybe you're a little low on self-esteem

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I think there are few things left to invent in MA. Most of the evolution is just recombining or reprioritizing things from other styles or arts. But much educated and experienced knowledge is required to do this effectively. Some changes are done to facilitate sport aspects or make it easier for most people to learn giving the art a new purpose. Is this new "art" now "non-traditional?" You can take any style and add some moves from another art. Is this a new non-traditional style, or just the same style with some extra stuff thrown in, like adding croutons to a salad?
There are those that say, "that move makes no sense" in fighting and change it. Many times they just don't understand the move, not having been taught what the move is really for. Their change may allow them to do the thing they have in mind
but negate the three things the master had in mind.
Non-traditional styles are based on changing or combining traditional styles.
Those traditional styles were at one point considered non-traditional and were themselves based on older traditional styles. Perhaps when people say a particular
currently "traditional" style is not effective it's because it was once a "non-traditional" style that changed something in the traditional style/s it was based on, and during that change something in that original style was changed or lost.
I think that if we dig far enough into a style's history and the intent of the masters who were a part of its evolution, the answers to many of its perceived shortcomings will be found, whether it be grappling or short-range striking, or flow, etc. Maybe we don't need a new style, just rediscover the old.
It seems touting to be "non-traditional" has become a tradition.
PS: Note that I used the words, "Many, most, maybe, some, etc." as I'm not for a draconian ban on change as TMA is a product of evolution. Just that we remain humble in the company of Masters and be careful what we discard or add without the necessary wisdom.