By Doing
The water side. Formal coursework plants the idea; you only learn it by doing it — on real tasks, in public, repeatedly. This half of learning doesn’t happen in a course. It happens in proving: unpaid public work in the Commons, judged on what you produce, where the seed becomes skill.
Learn and work climb foot-in-foot here — what you study in the tracks, you turn into ability on the work. Same climb, two accounts: work is what you do; learn is how you grow while doing it.
(Stub — expand: how doing feeds back into the levels, how a proven record on the Commons reflects growth, the hand-in-hand with work/proving.)