Cool on the Black belt. I did Shotakan, too. I stopped just before Brown since I discovered Bruce Lee's teachings along with Ninjutsu & military styles. Pivoted into those to learn different things. I keep recommending martial arts to people in general sense the mental agility, toughnes, & determination pays off in other areas.

Including I think in programming when trying to solve problems or especially debugging failures that lead others' libraries you just had to use.