In this excerpt from "Lucky By Design," Judd Kessler explains how opportunity costs shape our choices and why time is the real price we pay.

Game theory, originating in economics, is the science of strategic thinking applicable to various fields, including biology and diplomacy, and is crucial for decision-making in all aspects of business, according to game theorist Kevin Zollman.

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“CIA classifies their secrets according to different terminology. There's confidential secrets, there are secret level secrets, and then there are top secret secrets. And the way that they define each of these different levels actually has to do with the impact that would occur if the secret became public knowledge.”