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by collyw 3039 days ago
Malcom Gladwell's "Outliers" book shows some interesting relationships between month of birth and professional sports players.

Basically those born earlier in the year will generally have a physical advantage, which at a young age can make quite a difference (think of a chiold at 6 yeard old exactly compared to a child whi is 6 years and 11 months old).

These kids are then singled out and given extra training for the sport which they are good at, which compounds the effects.

https://en.wikipedia.org/wiki/Relative_age_effect