Annie Duke
Author of Thinking in Bets, How to Decide, and Quit · Former professional poker player · Cognitive-psychology researcher (Penn PhD work; language acquisition) · Special Partner, Decision Science, First Round Capital
“all decisions are actually bets. It's just a matter of making that explicit. So if we think about what a bet is, we're trying to make some decision about how to invest our resources that's informed by the beliefs that we have about what the possible future might look like.”
“Let's say that you say something that you think is 100% true. For example, you say, Citizen Kaine won Best Picture, and you just announce that with certainty. Let's say that you now say to me, do you want to bet? What happens to you? Hmm, Wait a minute, Let me think about that.”
“What Dan Gilbert showed in the 90s was. No, no, no, no, no. It's just like perceptual belief. You hear it, you lodge it as true, and then maybe later on you vet it.”
“the smarter you are, the better you are at kind of slicing and dicing this data to support whatever your prior is.”
“two things that are going to muck up your decision process within the group. One is your beliefs, and two, if an outcome has already happened because you're going to try to reason to make the outcome make sense.”
“In the financial world, really deconstruct the trade before you get the result of it. So you've decided to put a position on, deconstruct that decision process prior to, say, an option expiring.”
“you don't need very many people. You actually only need three. To borrow from Phil Tetlock, author of Superforecasters, you need three because you need two to disagree and one to referee.”
“just by expressing how you think things are going to turn out, you've now caused a virus. You've infected everybody with your belief, and they're going to tend to reason toward your conclusion because now they're going to be sort of like invited into the confirmation process with you as opposed to the exploration process with you.”
“when you're emotionally lit up, it's like your brain is shaking and it shuts down. The prefrontal cortex shuts down your ability to reason in the same way that a pinball machine just won't work anymore.”
“I know it's irrational to have a loss limit, but that irrationality is a lot less damaging to me in the long run than allowing myself to make these irrational decisions about whether it's a luck or skill issue that's causing me to lose right now, so that I press my position in places where I never should.”
“We think of grit as a virtue and quit as a vice, but that's not true. They're the exact same decision. By definition, if you choose to stick to something, you're choosing not to quit it. And if you choose to quit something, you're choosing not to stick with it. And we need to understand that all the skill is telling the difference between the two, because it's all about context.”
“usually if you quit at the moment that it's objectively correct, it will feel like you're quitting way, way, way too early. And that's the thing that we need to watch out for, because as human beings, we just generally stick to things too long, and life's too short for that.”
“grit is really good for getting you to stick to hard things that are worthwhile. The problem that I'm trying to tackle with quit is that grit also gets you to stick to hard things that are not worthwhile.”
“the hardest thing to quit is who you are. Even for Sears.”
“when you think about what Bezos or Branson says about one way or two way door decisions, that having a two way door decision, one that you can reverse or let's call it quit, makes it so that you just have more margin of error on the initial choice.”
“Imagine if the first person you ever dated, you had to marry. How hard would it be to make the decision to go on a date? How could you ever go on a date? It's the option to say that date wasn't very Good. I don't want to go out on another date with you. That allows us to go on dates.”
“Daniel Kahneman says this really well, that the worst time to make a decision is when you're in it. So what does he mean by in it? I like to describe it as you decided that you wanted to eat healthier, now there's a cupcake sitting in front of you.”
“one of the things that does not help is saying, just treat the decision like it's fresh... he actually tested that and found that it made no difference. So stop doing that. I just want to say that, like, stop saying, oh, I just say, would I buy it today? Because you're fooling yourself into thinking that you're making more rational choice. You are not.”
“This now gives TED two ways to win. I can close the business or I can follow the kill criteria.”
“when you're approaching a problem, you want to think about what are the bottlenecks? What's the really hard thing that needs to happen in order for me to be able to unlock this problem? And that's the thing that you're supposed to go after first. You're not supposed to build the pedestals.”
“If I can figure out after spending $2 million that we can't do it instead of figuring that out after we've spent $9 million, that's not a waste of $2 million. It's a saving of $7 million.”
“I think it's do the hard thing first and beware of false progress.”
Annie Duke
One-line summary: Decision-science writer and former world-class poker player; tracked here for Thinking in Bets (beliefs as bets, resulting, group hygiene) and Quit (quitting as skill, kill criteria, optionality).
What they're known for
Former world-class poker player who left a Penn cognitive-psychology PhD track (language acquisition under Lila Gleitman) after illness, then spent ~20 years at the table before becoming a decision-science writer and consultant. Author of Thinking in Bets (2018), How to Decide, and Quit (2022). Special Partner focused on Decision Science at First Round Capital. Intellectual context: Kahneman, Tetlock, Mauboussin, Gilbert, Kahan.
Why they matter to psychology
Primary practitioner-voice for this thread's decision-science subdomain: resulting, beliefs-as-bets, group hygiene, grit-vs-quitting, kill criteria, optionality. She translates Kahneman/Tetlock findings into operational tools without claiming to originate the underlying experiments. In scope here even where stock-market treated the same interviews as craft/zero-novelty.
Said
Speaker-attributed claims extracted from diarized sources. Each bullet mirrors one entry in quotes: frontmatter — keep them in sync.
-
On thinking-in-bets:
"all decisions are actually bets. It's just a matter of making that explicit. So if we think about what a bet is, we're trying to make some decision about how to invest our resources that's informed by the beliefs that we have about what the possible future might look like." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2018 (2018)
-
On thinking-in-bets:
"Let's say that you say something that you think is 100% true. For example, you say, Citizen Kaine won Best Picture, and you just announce that with certainty. Let's say that you now say to me, do you want to bet? What happens to you? Hmm, Wait a minute, Let me think about that." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2018 (2018)
-
On thinking-in-bets:
"What Dan Gilbert showed in the 90s was. No, no, no, no, no. It's just like perceptual belief. You hear it, you lodge it as true, and then maybe later on you vet it." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2018 (2018)
-
On thinking-in-bets:
"the smarter you are, the better you are at kind of slicing and dicing this data to support whatever your prior is." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2018 (2018)
-
On resulting, group-decision-hygiene:
"two things that are going to muck up your decision process within the group. One is your beliefs, and two, if an outcome has already happened because you're going to try to reason to make the outcome make sense." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2018 (2018)
-
On resulting:
"In the financial world, really deconstruct the trade before you get the result of it. So you've decided to put a position on, deconstruct that decision process prior to, say, an option expiring." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2018 (2018)
-
"you don't need very many people. You actually only need three. To borrow from Phil Tetlock, author of Superforecasters, you need three because you need two to disagree and one to referee." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2018 (2018)
-
On group-decision-hygiene, thinking-in-bets:
"just by expressing how you think things are going to turn out, you've now caused a virus. You've infected everybody with your belief, and they're going to tend to reason toward your conclusion because now they're going to be sort of like invited into the confirmation process with you as opposed to the exploration process with you." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2018 (2018)
-
"when you're emotionally lit up, it's like your brain is shaking and it shuts down. The prefrontal cortex shuts down your ability to reason in the same way that a pinball machine just won't work anymore." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2018 (2018)
-
"I know it's irrational to have a loss limit, but that irrationality is a lot less damaging to me in the long run than allowing myself to make these irrational decisions about whether it's a luck or skill issue that's causing me to lose right now, so that I press my position in places where I never should." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2018 (2018)
-
"We think of grit as a virtue and quit as a vice, but that's not true. They're the exact same decision. By definition, if you choose to stick to something, you're choosing not to quit it. And if you choose to quit something, you're choosing not to stick with it. And we need to understand that all the skill is telling the difference between the two, because it's all about context." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2022 (2022)
-
"usually if you quit at the moment that it's objectively correct, it will feel like you're quitting way, way, way too early. And that's the thing that we need to watch out for, because as human beings, we just generally stick to things too long, and life's too short for that." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2022 (2022)
-
"grit is really good for getting you to stick to hard things that are worthwhile. The problem that I'm trying to tackle with quit is that grit also gets you to stick to hard things that are not worthwhile." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2022 (2022)
-
"the hardest thing to quit is who you are. Even for Sears." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2022 (2022)
-
On optionality:
"when you think about what Bezos or Branson says about one way or two way door decisions, that having a two way door decision, one that you can reverse or let's call it quit, makes it so that you just have more margin of error on the initial choice." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2022 (2022)
-
On optionality:
"Imagine if the first person you ever dated, you had to marry. How hard would it be to make the decision to go on a date? How could you ever go on a date? It's the option to say that date wasn't very Good. I don't want to go out on another date with you. That allows us to go on dates." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2022 (2022)
-
On kill-criteria:
"Daniel Kahneman says this really well, that the worst time to make a decision is when you're in it. So what does he mean by in it? I like to describe it as you decided that you wanted to eat healthier, now there's a cupcake sitting in front of you." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2022 (2022)
-
On kill-criteria:
"one of the things that does not help is saying, just treat the decision like it's fresh... he actually tested that and found that it made no difference. So stop doing that. I just want to say that, like, stop saying, oh, I just say, would I buy it today? Because you're fooling yourself into thinking that you're making more rational choice. You are not." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2022 (2022)
-
On kill-criteria:
"This now gives TED two ways to win. I can close the business or I can follow the kill criteria." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2022 (2022)
-
"when you're approaching a problem, you want to think about what are the bottlenecks? What's the really hard thing that needs to happen in order for me to be able to unlock this problem? And that's the thing that you're supposed to go after first. You're not supposed to build the pedestals." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2022 (2022)
-
"If I can figure out after spending $2 million that we can't do it instead of figuring that out after we've spent $9 million, that's not a waste of $2 million. It's a saving of $7 million." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2022 (2022)
-
"I think it's do the hard thing first and beware of false progress." — 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2022 (2022)
Sources
- 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2018
- 2026-08-03-podcast-capital-allocators-best-of-decision-making-annie-duke-2022