Why your brain feels tired even after getting enough sleep
June 01, 2026
Most people try to improve performance by adding more techniques.
More frameworks.
More strategies.
More information.
But research on expertise suggests improvement rarely comes from expansion alone.
It comes from deeper internalization of fundamentals.
Chess prodigy and performance coach Josh Waitzkin describes this process as making smaller circles, refining core skills until they become intuitive.
Decades of expertise research show that experts do not necessarily think faster than novices.
They recognize patterns faster.
Studies of elite chess players demonstrate that expert advantage comes from deeply internalized configurations often called chunking, built through repeated exposure and deliberate practice.
Instead of consciously selecting from many techniques, experts rapidly recognize familiar structures and respond efficiently.
In other words:
Performance improves when knowledge becomes organized around core patterns rather than accumulated as isolated techniques.
Expert knowledge tends to be structured around underlying principles rather than surface details.
When situations become complex or stressful, high performers often return to foundational elements that remain stable across contexts.
This does not mean experts know fewer techniques, but their decisions are guided by deeply integrated fundamentals that remain reliable under pressure.
Depth creates consistency.
Deliberate practice research shows that mastery develops through prolonged, effortful engagement focused on improving specific components of performance.
Internalizing fundamentals requires sustained attention over time, repeated exposure, feedback, and refinement.
Tools designed to support sustained mental engagement, such as Numin, are built with this goal in mind: helping individuals remain cognitively engaged during extended learning and decision cycles.
(Importantly, this reflects design intention rather than a validated performance outcome.)
Waitzkin’s “smaller circles” idea mirrors what cognitive science observes in expert learning.
Over time, experts form more efficient mental representations:
Understanding becomes more compact, even as capability expands.
Beginners often expand outward.
Experts refine inward.
Sheridan, H., & Reingold, E. M. (2014). Expert versus novice differences in the detection of relevant information during a chess game: Evidence from eye movements. Frontiers in Psychology, 5, 941.
Gobet, F., & Simon, H. A. (1996). Templates in chess memory: A mechanism for recalling several boards. Cognitive Psychology, 31(1), 1–40.
Ericsson, K. A., Krampe, R. T., & Tesch-Römer, C. (1993). The role of deliberate practice in the acquisition of expert performance. Psychological Review, 100(3), 363–406.
Macnamara, B. N., Maitra, M., & colleagues. (2019). The role of deliberate practice in expert performance: Revisiting Ericsson, Krampe & Tesch-Römer (1993). Royal Society Open Science, 6(8), 190327.
Princeton University. (2014, July 2). Becoming an expert takes more than practice.