Survivorship Bias
xkcd.com
Survivorship Bias
Successful people tell the world they got lucky but then tell their loved ones about the importance of hard work and sacrifice. Critics of successful people tell the world those successful people got lucky and then tell their loved ones about the importance of hard work and sacrifice.
If you're outperforming an efficient market without any edge, you are Uncle George, and you should quit while you're ahead. If you’re convinced you do have an edge, but you notice that you are not sitting atop an enormous pile of money, you might consider the possibility that you are wrong.
In 1,000 parallel universes, you want to be wealthy in 999 of them. You don’t want to be wealthy in the fifty of them where you got lucky, so we want to factor luck out of it.