Outliers: The Story of Success · chapter 1 · id outliers-c1-06-the-relative-age-effect-dimini

“The relative age effect diminishes or reverses at the highest professional levels -- late-born players who survive the selection bias may develop compensatory skills, suggesting the system wastes talent rather than identifying it.”

needs contextconfidence: medium⚠ extracted by pipeline, re-audit pending

Receipts

Relative Age Effect Fading and Reversal in Junior and Professional Leagues (2023), PMCsource alive

Soccer players born in the second half of the year are as successful at senior level, indicating they are equally talented although under-represented at youth level due to bias during the selection process.

Nolan & Howell (2010), International Review for the Sociology of Sportpaywalled — manual check queued

The relative age effect was present in minor hockey but diminished at the NHL level, suggesting that late-born players who persevere may develop additional skills.

This claim is a stable, citable object. If you can falsify a verdict, tell us — corrections are loud here.