In this talk, the speaker introduces James P. Carse’s (referred to as Jim Kars) distinction between finite and infinite games. A finite game has known players, fixed rules, a clear objective, and a defined beginning, middle, and end, producing winners and losers (e.g., sports). An infinite game involves known and unknown players, mutable rules, and an objective of perpetuating the play itself, with no ultimate winner. The speaker recounts how Carse arrived at this insight in 1970s game‑theory salons, where scholars focused on winning strategies like the prisoner's dilemma but overlooked the concept of play. Carse observed that when his children played ping‑pong they argued over cheating, whereas when they built with Lego they played quietly for hours, illustrating that play—not competition—fosters cooperation, innovation, trust, and lasting relationships. The speaker warns that applying a finite‑mindset to an infinite context erodes trust, cooperation, and innovation, and calls for a cultural shift toward more “infinite play” in personal, organizational, and societal life.
Chapters
There are many people in the world who have great theories. Once in a generation, once in 100 years, you'll— somebody will come along who is able to define a truth. Jim Karsis is one of those people, and he defined these two types of games: finite games and infinite games. A finite game is defined as known players, fixed rules, and an agreed-upon objective. Football, baseball. If there's a winner, necessarily there have to be losers, and more importantly, there's always a beginning, middle, and an end. Always. Then you have infinite games. Infinite games are defined as known and unknown players, which means new players can join at any time. The rules are changeable, which means every player can play however they want, and the objective is to perpetuate the game, to stay in the game as long as possible. One of the things I've learned since I learned Carl— Carlsberg's work, which is when you play with a finite mindset in an infinite game, when you play to win in a game that has no finish line, decline of trust, decline of cooperation, decline of innovation. Right? Okay. Genius. I got to meet Jim Kars, my hero. Of course, the first question, I sit down with him, the first question I ask him is, "How did you come up with that?" Right? He, in the 1970s, there were all these salons, and the concept of game theory was all the rage in the 1970s. It was like, It was like the AI of today, like it's all anybody was talking about. And, you know, like the concept of the prisoner's dilemma, which some people may know, came out of one of these salons. They would get all these smart people together and talk about game theory. Everybody was talking about game theory. And they would bring economists and mathematicians and all— everybody was talking about game theory. And Kars was invited to some of these salons. And all of these very, very, very smart people, he recognized that they were all talking about winning and losing. None of them were talking about playing. And he had this incredible insight that when he goes home and his kids play ping pong, there's, um, always shouting and accusations of cheating. When his kids draw, play Lego, They'll play for hours. There's— it's dead quiet the whole time. Kids will come and go and join and leave and join and leave. They started to realize that play— play, not winning, not losing, not competition, but play— is the place where magic happens, innovation happens, cooperation happens, love happens, teamwork happens, right? —And so I think we undervalue play, but I think the idea of these infinite games where there is no conclusion, where you just draw, you do Lego, I think is magical. And I think there should be more of it. I don't think there's enough play. There's a lot of competition, but I think we need more play.
