Book Summaries

Thinking in Bets: Making Smarter Decisions When You Don’t Have All the Facts

Annie Duke

Drawing from years of placing millions of dollars on the line as a professional poker player, Annie Duke applies thoughtful strategy and compassion to learning that though we may not always have complete control over the outcomes, we can excel at the decision-making process. Using lessons from years at the poker table, and insight and theory from philosophers, scientists, and popular culture, Duke gives us the tools to make thoughtful and realistic decisions in today’s uncertain world, and move toward objectivity, accuracy, and open-mindedness.

Decision Making ≠ Outcome

  • “Drawing an overly tight relationship between results and decision quality affects our decisions every day, with potentially far reaching, catastrophic results.” A good decision does not always have a favorable result, and a bad decision does not always have a negative result (p. 8).
  • What makes a decision great is not the outcome, it is a good process. That process must include an attempt to accurately represent (and evaluate) our own state of knowledge (p. 27).
  • “Resulting” is the tendency to judge a decision by the outcome or result, not the quality or value of the decision itself. This is flawed, as it does not provide any opportunity to learn from the process.
  • An unwanted result doesn’t make the decision wrong if we have thought about the probabilities and alternatives in advance and allocated our resources accordingly (p. 33).

Luck versus Skill

  • When you chalk up bad outcomes to bad luck, there is nothing to be learned (luck is the issue). Similarly, when you attribute good things to only skill, you are not taking outside, unknown factors into account (luck). You must be able to acknowledge the room for improvement in everything, take responsibly for the factors that are within your control, and learn from those that are not.
  • Skill in life comes from using experience and information to more objectively update our beliefs to more accurately represent the world; the more accurate our beliefs, the better our foundation for the bets that we make (p. 48).

“I’m not sure” Using Uncertainty to Your Advantage

  • The goal is to acquire knowledge, and the first step is understanding what we do not know. Conscious ignorance is the prelude to every great decision that has ever been made (p. 27).
  • Saying “I’m not sure” is a vital step to being a better decision maker (p. 26).
  • “We are given one shot at a decision, and that puts great pressure on us to feel certain before acting and makes it necessary to overlook influences of hidden information and luck” (p. 26).

Black and White Thinking

  • Nothing in life is 100%; therefore, we shouldn’t assume we have all of the answers.
  • If we represent the world in extremes of right and wrong, our ability to make good choices, allocate resources, and determine what type of decisions and actions we should make, will suffer (p. 30).
  • For most of our decisions, there is significant space between unequivocal right (white), and wrong (black). Making better decisions becomes about calibrating the gray.
  • Because being wrong hurts us more than being right rewards us, we need to take emotion out of it and learn from being wrong. Negative outcomes don’t have the same sting if you turn them into positive learning experiences (p. 113).

All Decisions are Bets on the Future

  • A “bet” is defined as “a choice made by thinking about what will probably happen; to risk losing something when you try to achieve something; decisions that are based on the belief that something will happen or is true” (p. 44).
  • Ignoring risk and uncertainty in our decisions may make us feel better, but its cost to the quality of our decision-making process is immense. If we find ways to be more comfortable with uncertainty, then we can see the world more accurately (p. 47).
  • Our bets are only as good as our beliefs. Every decision is a bet (pp. 45-47).
  • Acknowledging that all decisions are bets on our beliefs, getting comfortable with uncertainty, and redefining right and wrong are integral to sound decision making.

Calibrating (and updating) our Beliefs

  • Our beliefs are formed haphazardly, only when we look at them in the context of “do you want to bet on it?” or “on a scale 1-10, how certain are you sure that X is true” are we likely to examine our beliefs in a more objective, less biased way. The more objective we can be, the more accurate our beliefs will become (pp. 66-67).

Truthseeking and Dissent

  • Truthseeking is defined as “the desire to know the truth even if it does not align with the beliefs we hold.” We need to engage in active truthseeking if we wish to improve the decision-making process (p. 55).
  • Like scientists who share their information and invite scrutiny, the goal should be to advance knowledge, not affirm what we already believe to be true (p. 72).
  • When we have a better understanding of the faults in our information and beliefs, and make a conscious effort to understand our opponent’s strategic choices, we can devise better counter-strategies (p. 162).
  • We should create environments that encourage the discussion of dissent and skepticism, and where possible operationalize them to invite more people into cooperative exploration (p. 170).

Communicating with Others

  • Declaring our uncertainty in our beliefs makes us more credible communicators; it shows that we are trying to get to the truth above all else and that we consider the quality and quantity of information with thoughtfulness and awareness (pp. 70-71).
  • Expressing uncertainty encourages others to offer potentially valuable, dissenting opinions (p. 172).
  • Lead with assent. Find something that you agree with and add information to the discussion using “and” (a supplementing term) instead of “but” (a negating term) (p. 173).
  • Both parties must consent to truthseeking. “If someone is offloading emotion to us, ask if they are looking to vent or if they are seeking solutions” (pp. 174).
  • “Focus on the future. People are more rational about the future than the past, and people are less likely to get defensive about something that hasn’t happened yet” (pp. 174-175).
  • In order to obtain unbiased advice from your advisor, omit the final outcome and your personal interpretation until they have had a chance to establish their own understanding of the situation (p. 165).

Betting on Yourself

  • Use 10-10-10. Ask yourself how this decision will impact you in 10 minutes, 10 months, and 10 years (p. 189).
  • We shouldn’t plan our futures without doing the advanced work of examining the ranges of results that could occur. We must plan for different scenarios and the probability of those scenarios playing out (p. 209).
  • Make regret productive. Move regret in front of a decision by thinking how we may feel if a negative outcome is the result of our decision-making. Coming to peace with a possible bad outcome in advance will feel better and provide more learning experiences than refusing to acknowledge it from the start (p. 189).

Quick and Easy Rules to Better Decisions

  • Don’t complain. Every outcome is an opportunity to examine your decision making (p. 205).
  • Avoid signs of absolute certainty. Banish words like “I’m sure of it,” “best,” “worst,” “good,” and “bad.” Confidence with an open mind is useful. Overconfidence, which often prevents an open mind, is dangerous (p. 204).
  • Avoid generalizations of people; it discounts what you could learn from your interaction with them (p. 205).
  • “Don’t shoot the message [sic].” Don’t discount the message or information solely because you do not agree with source (p. 160).
  • Share facts and information that make you question your conclusions (p. 158).
  • Don’t focus on the moment too closely. Keep the big picture in mind. When we take the long view, we think in a less emotional, more rational way (p. 191).
  • Think with your past and future self. How have I felt after a similar decision in the past? How will I look back on this decision in the future, regardless of outcome? (p. 188).

Duke, A (2018) Thinking in Bets: Making Smarter Decisions When You Don’t Have All the Facts. New York: Portfolio/Penguin Press

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