I remember when Rocket Mortgage did the billion dollar March Madness bracket contest where if anyone could fill out a perfect bracket they'd win a billion dollars. It was insured by Warren Buffet and he said that if someone was going into the 63rd game with a perfect bracket he would've offered them $100M to call it even. I'd guess if someone was getting close he probably would've made an offer before that as well.
The odds of even getting that far are astronomically small but I think if I had the option to take a guaranteed $100M vs a possible $1B (or $0) on a coin flip I'd take the $100M in a heartbeat.
Here's a story on it and the theoretical "Buffet buyout":
https://www.si.com/extra-mustard/201...dollar-bracket