Completely (almost) non clinical episode, I feel kind of like we need a COVID-19 break and I received an email asking me why I kept referring to belt rankings.
In my mind there is a growing body of literature that myelin leads to speed of action and speed of thought. Also to Mylenate your brain you need to do drills, develop passion and practice. As a guy who has done a little judo and a little brazilian juijitsu I can tell you it's the same there.
The key difference is that although people identify belt ranks with a hierarchy they are actual more about masteryand so it's pretty similar to acute care.