Quote Originally Posted by Morph Bark View Post
Considering the black belt means you've mastered the basics (and how a lot of martial arts don't even work with a belt system, I've only heard about it in relation to judo, karate and some modern Korean martial arts), I'd say I'd prefer to go on until the second dan at least, to show I've got a tiny bit of mastery beyond the basics, but it all depends on the art itself.
Brazilian Jiu-jitsu black belt cannot be legally obtained (in serious classes) without at least 5 years of being ranked as lower belts, and generally being active.

In practice, most averagely talented and training people will reach it way later, if ever.

And Judo ranking is pretty strongly tied with BJJ, and similar.

So it depends on art, but in those, for example, black belt has nothing to do with "basics" generally.