Episode Summary
Executive Summary: Adam Grant argues that the key to better decisions, relationships, and organizations is “rethinking” rather than defending fixed beliefs. He contrasts scientist-mode curiosity with preacher/prosecutor/politician mindsets, shows how identity and status block updating, and offers practical methods—structured hiring, self-critique, process accountability, and vulnerability—to make changing one’s mind safer and more effective.
Main Topics: Rethinking vs. fixed beliefs: Grant explains why people resist updating views and why changing your mind should be treated as a strength, not a weakness. He frames beliefs as hypotheses that should evolve with evidence. Identity, values, and intellectual humility: The conversation explores how tying identity to values rather than specific beliefs reduces defensiveness and keeps people open to learning, especially in expert-driven fields. Decision-making and process accountability: Grant argues organizations should judge decisions by the quality of the process, not just outcomes, and describes structured methods for hiring and evaluating choices. Psychological safety and leadership vulnerability: He explains how leaders can create safer cultures by criticizing themselves openly, showing trust first, and normalizing vulnerability and accountability. How to persuade and disagree productively: The discussion covers disagreement as a dance, emphasizing common ground, curiosity, and “how” questions that expose the limits of people’s understanding. Tribes, belonging, and optimal distinctiveness: Grant describes why people join groups that let them both belong and stand out, and how group identity can replace independent thought. Teaching rethinking to children and teams: He shares practices like rewriting textbook sections, myth-busting at dinner, and discussing personal mistakes to help others experience the joy of being wrong.
Key Arguments: If you voice an opinion, you should also be willing to change it when better evidence appears. People resist rethinking because it threatens identity, predictability, and status as an expert. Identity should be tied to values (e.g., generosity, excellence, integrity, freedom), not to specific beliefs or methods. Beliefs should be treated as theories to test, not truths to defend; the scientific mindset is to ask what evidence would change your mind. Organizations should reward good decision processes, not just good outcomes, because outcomes are often delayed or noisy. Hiring improves when criteria are defined before candidates are evaluated and when different people assess distinct attributes. Psychological safety is built less by asking for feedback and more by leaders publicly criticizing themselves and showing vulnerability. In disagreements, start with common ground and use “how” questions to reduce defensiveness and surface knowledge gaps. Most people overestimate how much they understand; asking them to explain implementation reveals the illusion of explanatory depth. Binary thinking is often misleading; many important traits and beliefs exist on a spectrum rather than in two camps.
Data Points: Time researching and teaching evidence-based management: 15 years - Introductory description of Adam Grant’s work Interviewers recommended for hiring: 3 or 4 - Grant says empirically it is better to use more than one interviewer Self-criticism intervention effect on psychological safety: at least a year - Randomly assigning managers to criticize themselves increased team psychological safety for at least a year Investment banking recommendations: 26 - Grant says he produced 26 evidence-based recommendations for retaining junior analysts and associates MBA decision cost example: 2 years and a quarter million dollars - Grant uses this as a benchmark for evaluating the opportunity cost of an MBA Criteria used by sports teams: 7 or 8 attributes - Grant notes sports teams often assess only a small number of attributes despite many drivers of performance Potential performance drivers in sports: 200 - He estimates there may be about 200 attributes influencing future performance Meeting reading time at Amazon: 15, 20, or 30 minutes - Grant describes Amazon’s practice of silent memo reading before senior leadership discussions
Pivotal Quotes: "If you can't answer that question, you are no longer thinking like a scientist. You have gone into preacher or prosecutor mode." — Adam Grant: Explaining how to know whether you are open to changing your mind "You're entitled to your own opinion if you keep your opinion to yourself. If you decide to say it out loud, then I think you have a responsibility to be open to changing your mind in the face of better logic or stronger data." — Adam Grant: His response to people who use entitlement as a shield against reconsideration "That was wonderful. I was wrong." — Daniel Kahneman: Grant recounts Kahneman’s reaction to a talk and his joy at learning he had been mistaken
Implications: Listeners are urged to adopt a scientific mindset, separate identity from ideology, and build cultures that reward learning over ego. For leaders, the payoff is better judgment, safer teams, and more adaptive organizations.
From the Episode
Yeah, you're entitled to your own opinion if you keep your opinion to yourself. If you decide to say it out loud, then I think you have a responsibility to be open to changing your mind in the face of better logic or stronger data. And so I think if you're willing to voice an opinion, you should also be willing to change that opinion. It goes right back to something we talked about earlier, which is to say, okay, when would I change my mind? If you can't answer that question, you are no longer thinking like a scientist. You have gone into preacher or prosecutor mode. Welcome to the Knowledge Project Podcast. I'm your host, Shane Parrish. This podcast is packed with timeless ideas and practical insights to help you get the most out of life and business. If you're listening to this, you're not currently a supporting member, if you'd like special member-only episodes, access before everyone else, transcripts, and other member-only content, you can join at fs.blog slash podcast. Check out the show notes for a link. Today I'm speaking with Adam Grant. Adam has spent the past 15 years researching and teaching evidence-based management, helped the likes of Google, Pixar, and the MCAT.
And he said, it's the only way I know I've learned something. If I find out I was wrong, it means I am now less wrong than I was before. And he talked very eloquently about the value of detaching your, like we talked about, your opinions from your identities, your ideas from your identities, to say, look, every idea I have, it's just a hypothesis. It might be true, might be false. And if I have a vested interest in it being true, then I'm not going. To discover as much as if I really want to find out if it's true or when it's true. I think Bezos had something along these lines too, right? Where he's like, people who don't change their mind are wrong. So if you want to be right, you have to be somebody who changes your mind a lot. Yeah, I think that it's been one of Amazon's persistent competitive advantages. Love them or hate them, right? They are extremely adaptable. And I've thought about this in terms of another two by two.
In the realm of evidence as opposed to just opinion. Right. And so when I ask them to tell me what a well-designed study is going to look like, we can then agree on what valid methods are. And once I tell them what the findings are using their chosen methods, it's a lot harder for them to just have a knee-jerk objection. So I decided after that experience that you can lead a horse to water, but you can't make it think. The hope is I learned something from that conversation. And now we're arguing to learn as opposed to arguing to win. Talk to me about this logic belief. Thing. Well, I had a student some years ago now. Her name is Jamie, and she was trying to make a big career decision about whether to do an MBA, and if so, what school she should go to. I think she had been accepted at two schools. I just said, Jamie, look, I'm not saying you shouldn't do an MBA, but let me give you all the reasons why I think it might be a waste of time and money. You already have an undergrad business degree, you don't need an MBA.
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