Author: Arne Güllich et al
Journal: Science (2025)

AI generated summary

This review synthesizes recent large-scale evidence on how world-class human performance develops across domains such as sports, science, music, and chess. Drawing on data from more than 34,000 international top performers, the authors challenge long-standing assumptions based on studies of youth and sub-elite performers.

Key findings:

1. Early stars and adult elites are mostly different people
   Across domains, individuals who excel early (e.g., youth champions, top students) are rarely the same individuals who later reach world-class levels. Roughly 90% of early and later top performers are different people.
2. World-class performers often do not stand out early
   Many of the very best adults performed below their peers during childhood and adolescence. When comparing only top adult performers, higher peak performance is negatively associated with early performance.
3. Predictors of early success differ from predictors of ultimate excellence
   • Early high performance is linked to:
     • Early specialization
     • Large amounts of discipline-specific practice
     • Fast early performance gains
   • World-class adult performance is linked to:
     • More gradual early progress
     • Less early discipline-specific practice
     • More multidisciplinary practice (e.g., multiple sports, fields, or artistic genres)
4. Multidisciplinary experience is a consistent advantage
   Across all examined domains, top adult performers engaged in broader early experiences, typically practicing about two additional disciplines before specializing. This pattern shows similar effect sizes across sports, science, music, and chess.

Proposed explanations:
The authors introduce three complementary hypotheses to explain these patterns:

• Search-and-match: Exploring multiple domains helps individuals find the best fit for their talents.
• Enhanced learning capital: Diverse experiences improve long-term learning ability and adaptability.
• Limited risks: Broader engagement reduces burnout, injury, and early career derailment.

Implications:

• Selecting and intensively training early top performers may optimize short-term success but undermine long-term excellence.
• Elite training programs, schools, and academies should de-emphasize early specialization and encourage multidisciplinary development.
• Early high performance is a poor standalone indicator of ultimate world-class potential.

Conclusion:
Across domains, the pathway to the highest levels of achievement is characterized not by early dominance and narrow focus, but by breadth, patience, and sustained development. These findings suggest broadly applicable—and possibly universal—principles for fostering exceptional human performance.