Neat Trick
So as I understand it this was a guy who understood probability and saw the opportunity of winning more than he spent when a lottery reached a certain point and the un-won (ok, not a word but you know what I mean) big money prize was distributed downwards through the lesser prizes.
On his first attempt he spent $1,100 and won $1,900. I guess he could have lost but with average luck was pretty certain of doing OK.
He gradually scaled this up and invited friends to form a syndicate and they got to the point of buying hundreds of thousands of tickets and gradually winning millions of dollars.
There was a similar syndicate from MIT doing the same thing and eventually the buying patterns were noticed and investigated and I don't know if it's still possible to do this.
But it's not rocket surgery - it's just probability and having the spare cash to have a go - and being aware you could still lose. I wonder what would have happened if on the 1st draw someone had won the big prize and he's lost most of his $1,100?
https://www.cbsnews.com/news/jerry-and-marge-selbee-how-a-retired-couple-won-millions-using-a-lottery-loophole-60-minutes-2019-06-09/