Expand the circle deliberately, not aspirationally
Grow your circle through deep study and feedback, not by simply believing you are competent.
Key takeaways
- What it is: Grow your circle through deep study and feedback, not by simply believing you are competent.
- Why it works: The circle only expands when genuine feedback corrects your model — when you have been wrong, understood why, and revised. Reading widely, taking courses, or feeling interested in a domain does not expand the circle; making real decisions, getting accurate feedback, and updating from it does. Aspirational expansion ("I’m learning finance") conflates intention with achievement.
- Evidence: Backed by observational / correlational evidence.
- Avoid: Counting enthusiasm, reading, or exposure time as expansion — the circle only grows when feedback has corrected wrong predictions in the new domain.
Why it works
The circle only expands when genuine feedback corrects your model — when you have been wrong, understood why, and revised. Reading widely, taking courses, or feeling interested in a domain does not expand the circle; making real decisions, getting accurate feedback, and updating from it does. Aspirational expansion ("I’m learning finance") conflates intention with achievement.
How to do it
- 1Identify a domain you want to expand into and list the specific competencies you are missing.
- 2Seek low-stakes decisions in that domain where feedback is fast and accurate.
- 3Track your prediction accuracy in the new domain over time — not your feeling of competence.
- 4Declare the expansion complete only when your prediction accuracy in the domain is measurably better than baseline.
What the evidence says
ObservationalDeliberate practice research (Ericsson) shows that genuine expertise requires specific feedback-and-correction cycles, not just accumulated experience or passive exposure. Domain knowledge acquired without accurate feedback tends to be poorly calibrated.
Honest caveat: Deliberate practice research has been contested on effect size; the core point — that feedback is required for accurate calibration — is robust even where the larger claims are debated.
- — Ericsson, Krampe & Tesch-Römer (1993), "The Role of Deliberate Practice", Psychological Review
Common mistake
Counting enthusiasm, reading, or exposure time as expansion — the circle only grows when feedback has corrected wrong predictions in the new domain.
IX Coach tracks your performance in an area you are developing over time, distinguishing genuine skill growth from confidence growth.
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