Excellent point.
I remember when I was working as the business reporter for KCAL that I covered the press conference where a lottery winner was awarded some mega prize. And the winner claimed he had a system for picking lottery numbers. Yet, he never won again.
On the other hand, one of my neighbors when I used to live in Valencia won the darn California lottery twice in one year. But this was when the jackpots were smaller. If I recall the wins were for about 4-million and 3-million. But he made no claims about a system. He did however spend his time driving through the neighborhood and complaining to the HOA if someone's house wasn't properly gardened or painted.