- Neither expertise nor the black belt signify that you can beat up all comers. On any given day anyone might win a fight. But, after 10 years practice (per Malcolm Gladwell), the martial arts guy should rarely be so outclassed that he doesn't know what happened to him when he does lose, and he should be able to formulate a plan to get better at whatever got him beat up.
- Expertise means that you have seen the whole system and have seen it in enough variations and practical scenarios that you can make it work pretty good. This generally doesn't happen until about 4th degree black belt (or the equivalent). Some folks say it isn't until 6th degree black belt.
- To me, expertise signifies the ability to not only do the deed, but to discuss and explain and teach it.
What does martial expertise mean to you?