when I was thinking about Buffett, his favorite game—bridge—and the nontransitive dice, I wondered whether bidding systems at bridge might be like those dice. Could it be that no matter which bidding system you use, there will always be another system that beats it, so there’s no best system? If so, the inventors of new “better” bidding systems could be chasing their tails forever, only to have their systems beaten by still newer systems,
Possible. Though there’s the fuzzy rule about how arbitrary of a bidding system you’re allowed to use. Information theory can probably shed light on theoretical limits on bidding system effectiveness, but rules prevent their exploitation. Though it was never clear to me how to determine if a bidding system is legal or not. Interesting area for bridge Talmudic scholars to pursue and publish on.