The Law
The law generally (and English common law in particular) is a pretty impressive human achievement. I've found that even a little legal knowledge goes a long way.
California is unique among the states in the variety of paths it permits to become a lawyer. After a few years of study, I passed the CA bar exam and became an attorney in February 2021.
(I'm always interested in meeting people doing creative work at the intersection of the law, business and technology!⚖️🖥)