System 1 and System 2 Thinking; Pt. 2

Working Memory Is a Finite Resource

Anything that occupies working memory reduces your ability to think. When System 2 is busy holding a conscious instruction, it has less capacity for anything else.

This is the hidden cost of a technique that has yet to be automated. A beginner must simultaneously remember defense mechanics, manage panic, process an opponent's movement, and execute under physical pressure. That is an enormous System 2 load. Experienced grapplers, by contrast, have moved most of those operations into System 1; defense runs in the background, freeing System 2 to attend to higher-order decisions.

This is why repetition is the mother of skill. It is the cognitive transfer from effortful System 2 processing to automatic System 1 execution, freeing mental resources for deliberate attention.

System 1 Jumps to Conclusions

When information is scarce, System 1 constructs the most coherent story from available evidence, and if it holds together, you believe it, often without noticing skipped steps.

This can lead to misreading opponents. Feeling pressure in a familiar direction, System 1 might conclude: Anaconda, pull the arm back. However, the opponent might be baiting that reaction to set up a guillotine. System 1 matches partial input to the most available template and commits before the picture is complete, treating limited information as complete.

This tendency affects how you think, including assessing your own game. You have intuitive notions about positions and techniques, which arrive quickly and feel authoritative. But, they are based on the most available information, and with limited knowledge, it’s paradoxically easier to construct a confident story, as fewer pieces might contradict each other.

A beginner who watched three highlight reels and believes they understand leg locks isn’t foolish. Their System 1 built a coherent narrative from available material. The issue is their ability to ignore what they don’t yet know.