I think you'll find it's not a real implementation. OP's example requires 2^100 people ~10^30 It's a similar problem with the email list. 50+ years ago Scroog

I think you'll find it's not a real implementation. OP's example requires 2^100 people ~10^30 It's a similar problem with the email list. 50+ years ago Scrooge McDuck also had this happen to him. He had a treasure map for gold (In Antarctica I think) which he got conditional on profit sharing and he found gold. The map sellers ran this scam, sold heaps of different maps because someone would find gold. I personally don't think Scrooge McDuck was just lucky though.