[uyt]

The birth date effect is actually real: https://en.wikipedia.org/wiki/Relative_age_effect

So maybe machine learning can turn astrology into a real science after all!

[t-writescode]

Could this be explained by children being older when they're going through school, allowing them to be more able to play successfully in sports / be in the middle of puberty at a more convenient time in the years where they would join a sport?