So let's say you have a hypothetical poker game. You're not playing in it, though, just hosting, with, say, 4 others playing. And then you get another group of 4 together, and have them bet on who wins the poker game. (Like in "Rat Race", sort of.) But then you get a third group of 4, and have them bet on who wins the second group's bet. And then have a fourth group bet on the third group. Now, what would happen if you had the first group stop playing poker and instead bet on the fourth group?
The world blows up.
Maybe I could sell this to North Korea.