A review published in Science in December 2025 analysed 19 datasets containing a total of 34,839 adult international top performers and found a clear, recurring pattern across sport, science, music and chess: individuals who excelled early tended to have specialised quickly in a single discipline, while those who later reached the highest international levels more often showed slower early progress and accumulated experience across several domains before narrowing their focus.
What the review examined
The paper, authored by Arne Güllich (RPTU University Kaiserslautern‑Landau), Michael Barth (University of Innsbruck), David Hambrick (Michigan State University) and Brooke Macnamara (Purdue University), combined evidence from 19 datasets of elite adults and 66 representative studies of younger or sub‑elite performers.
The authors did not follow a single cohort from childhood to adulthood under a shared protocol. Instead, the review synthesised a wide range of measures of success used in different fields — including medals and rankings in sport, citations and awards in science, and recognised works in the arts — to identify broad, cross‑domain patterns.
Key patterns reported
- Distinct populations: exceptional early performers and adults who later became world‑leading were largely different groups.
- Early specialisation and speed: children who reached high performance quickly typically progressed through intensive, focused practice in one discipline.
- Breadth and slower early progress: adults who achieved world‑class status more often had multidisciplinary early experience and a slower developmental trajectory before specialising.
The review’s indexed abstract summarises these three cross‑domain patterns without claiming that the associations are causal. The authors stress that their work synthesises existing studies rather than experimentally assigning children to specialise or explore.
How to read the findings
Two important caveats accompany the review. First, the 34,839 individuals were drawn from diverse datasets and were not part of a single, standardised longitudinal study. Second, the work demonstrates a consistent association across unusual, high‑level careers; it does not demonstrate that a broad early experience will cause excellence for any particular child.
In practical terms, that means the review is valuable for identifying a pattern worth considering when designing talent systems, but it cannot provide a one‑size‑fits‑all prescription.
Implications for talent development
Talent identification systems — whether in schools, sport academies, orchestras or research funding bodies — are typically structured to find fast improvers. Children who win early competitions or show rapid gains are more likely to be selected, receive funding and enter specialised training tracks. The review suggests those systems may preferentially elevate early specialists while overlooking children whose development is slower but broader, and who may ultimately attain higher levels in adulthood.
Policymakers and programme designers might therefore consider whether selection and support mechanisms are balanced to allow for different trajectories. Options include:
- Supporting multi‑disciplinary early education and late specialisation pathways;
- Providing flexible funding windows that enable late developers to access advanced training later in adolescence; and
- Collecting longer‑term outcome data to evaluate which selection practices best predict adult excellence.
The review does not call for abandoning early support for clear prodigies; rather, it highlights the risk that systems focused only on speed can miss later high achievers.
| Item | Figure |
|---|---|
| Adult international top performers covered | 34,839 |
| Datasets synthesised | 19 |
| Representative studies of young/sub‑elite performers | 66 |
Researchers and practitioners should view these findings as a cross‑disciplinary signal to reassess how talent is identified and nurtured. The review underscores the value of long‑term tracking and diverse early experiences, but it leaves open the question of how best to translate those insights into policy or practice. Future research that follows children prospectively under harmonised methods would be needed to test whether encouraging breadth early on changes the odds of reaching the highest adult levels.
For now, the evidence invites a broader conversation among schools, sports federations, arts organisations and funders about striking the right balance between rewarding early success and keeping pathways open for later bloomers.
