Let's look at "Unthinking" from yet another angle.
"Automaticity" is used to describe how those who've mastered their craft- from athletes to pilots and everyone in between- have
mastered their respective art's fundamentals to where they execute those fundamentals instinctively, freeing them to focus on higher-level concepts and/or strategy.
While giving textbooks and lectures their proper credit, making learning an interesting game instead of a sleep-inducing chore to get K through 12 curriculum to "automaticity" is what this article focuses on.
In the context of Casino, "Automaticity" is required of your ability to lead and/or follow the fundamentals:
The philosophy behind good social dancing, leading, following, and topics that discuss more than just Salsa Cubana.