Repetition without design is not Ericsson’s construct. Perfect is the wrong promise.
Mathematical talent shows up here through tests, conservatories, academies and workplace stories — windows that already mix training with starting points.
What follows is a map of institutions, not a diagnosis. Selection usually measures current performance.
US, UK, Canada, Australia and related school markets
Institutions
- Olympiads (AMC, IMO track) — Contest scores mix training volume with starting points. They are public windows, not souls.
- STEM magnet schools — Specialist maths/science high schools select on current problem sets.
- Coding contests — IOI-style contests reward speed plus pattern memory. Hours of problem sets are already inside.
- GRE and late proxies — Graduate tests are late academic windows, not childhood X-rays.
Local false readings
- Contest = research — Olympiad speed is not the same as a slow laboratory life.
- One subject score — A maths mark is not linguistic talent, and the reverse is also false.
- Memory as magic — Mnemonic sport is trained encoding. It is impressive and still a method.
Use this local map to ask better questions of schools and coaches. It is not a ranking of children or nations.
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