Mental Models: 30 Thinking Tools that Separate the Average From the Exceptional. Improved Decision-Making, Logical Analysis, and Problem-Solving.
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About this ebook
30 Practical and applicable guidelines to think smarter, faster, and with expert insight (even if you aren’t one).
Mental models are like giving a treasure map to someone lost in the woods. They provide instant understanding, context, and most importantly, a path to the end destination. Now imagine having such a map for all problems and decisions in your life.
Battle information overwhelm, focus on what really matters, and make complex decisions with speed and confidence.
Mental Models: 30 Thinking Tools sheds light on true intelligence: it’s not about knowledge and knowing the capitals of all the countries in the world. It’s about how you think, and each mental model is a specific framework on how to think smart and with insight. You can approach the world by trying to analyze each piece of information separately, or you can learn mental models that do the work for you.
Learn how billionaires/CEOs, Olympic athletes, and scientists think differently and avoid mistakes.
Peter Hollins has studied psychology and peak human performance for over a dozen years and is a bestselling author. He has worked with a multitude of individuals to unlock their potential and path towards success. His writing draws on his academic, coaching, and research experience.
Peter Hollins
Pete Hollins is a bestselling author and human psychology and behavior researcher. He is a dedicated student of the human condition. He possesses a BS and MA in psychology, and has worked with dozens of people from all walks of life. After working in private practice for years, he has turned his sights to writing and applying his years of education to help people improve their lives from the inside out. He enjoys hiking with his family, drinking craft beers, and attempting to paint. He is based in Seattle, Washington. To learn more about Hollins and his work, visit PeteHollins.com.
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Reviews for Mental Models
62 ratings12 reviews
What our readers think
Readers find this title to be a brilliant, superb, and amazing book. It offers practical guidance and easy reading with practical examples. The mental models described in the book can be a total game changer and help readers make better decisions. While some reviewers found the models towards the end to be well known, the ones at the beginning offered new insights. Overall, this book is highly recommended for its concise and practical approach to tackling problems and challenges.
- Rating: 5 out of 5 stars5/5Great Mental Models. Just one or two of the mental Models described here can change your entire outcome when it is judiciously applied. Applying more of these MMs will be a total game changer.
- Rating: 5 out of 5 stars5/5A systematic and good book for arranging thinking, ideas and mind
- Rating: 5 out of 5 stars5/5It's short but well detailed enough and lots to learn from this book would recommend
- Rating: 4 out of 5 stars4/5Enjoyable, easy read. The models 'thin out' towards the end of the book, and quite well known, but the ones at the beginning offered some good new insights at least for me.
- Rating: 2 out of 5 stars2/5It seems the writers wantee to fill a book.. the whole book can be summarized in one page.
The models offered have no real value it is very naive. - Rating: 5 out of 5 stars5/5Amazing book, the practical guidance that it actually gives to your life has no comparison to anything!
- Rating: 5 out of 5 stars5/5This is the third book by Peter Hollins that I'm reading. And it's by far the most practical. Every page is full of straightforward, sensible advice on using mental models to tackle the problems and challenges you face. Truly amazing book.
- Rating: 5 out of 5 stars5/5I liked the book becsuse it is concise and practical. We all fall back to our old thinking patterns from time to time. The models in this book can help us revisit our thinking differently when stuck. I highly recoomend it, and plan to apply these models in my work.
- Rating: 5 out of 5 stars5/5A must read it if you want to make better decisions
- Rating: 5 out of 5 stars5/5Easy reading with very practical examples. Efficiently written resulting in tons of takeaways per page read
1 person found this helpful
- Rating: 5 out of 5 stars5/5loved every single MM. explained with proper examples, simple language, easy to understand
- Rating: 5 out of 5 stars5/5Brilliantly written, superb content.
I'm into this stuff and have read some of the topics covered, but this nailed it.
If you can't stand waffle, you'll love this yet too because every idea walks you through concisely and clearly.
It has left me with that feeling you get at the end of a great film where your only regret is you can't watch it again for the first time.1 person found this helpful
Book preview
Mental Models - Peter Hollins
Problem-Solving.
Mental Models:
30 Thinking Tools that Separate the Average From the Exceptional. Improved Decision-Making, Logical Analysis, and Problem-Solving.
By Peter Hollins,
Author and Researcher at petehollins.com
Click for your FREE Human Nature Cheat Sheet: 7 Surprising Psychology Studies That Will Change The Way You Think.
Table of Contents
Chapter 1. Decision-Making for Speed and Context
MM #1: Address Important
; Ignore Urgent
MM #2: Visualize All the Dominoes
MM #3: Make Reversible Decisions
MM #4: Seek Satisfiction
MM #5: Stay Within 40–70%
MM #6: Minimize Regret
Chapter 2. How to See More Clearly
MM #7: Ignore Black Swans
MM #8: Look for Equilibrium Points
MM #9: Wait for the Regression to the Mean
MM #10: What Would Bayes Do (WWBD)?
MM #11: Do It Like Darwin
MM #12: Think With System 2
Chapter 3. Eye-Opening Problem-Solving
MM #13: Peer Review Your Perspectives
MM #14: Find Your Own Flaws
MM #15: Separate Correlation From Causation
MM #16: Storytell in Reverse
MM #17: SCAMPER It
MM #18: Get Back to First Principles
Chapter 4. Anti-Mental Models: How Avoidance Breeds Success
MM #19: Avoid Direct Goals
MM #20: Avoid Thinking Like an Expert
MM #21: Avoid Your Non-Genius Zones
MM #22: Avoid To-Do Lists
MM #23: Avoid the Path of Least Resistance
Chapter 5. Oldies but Goodies: They’re Still Around for a Reason!
MM #24: Murphy’s Law
MM #25: Occam’s Razor
MM #26: Hanlon’s Razor
MM #27: The Pareto Principle
MM #28: Sturgeon’s Law
MM #29-30: Parkinson’s Laws
Summary Guide
Chapter 1. Decision-Making for Speed and Context
The name Charlie Munger might not ring a bell, but you’re probably familiar with his business partner, Omaha billionaire Warren Buffett, one of the world’s most famous investors and, accordingly, one of the world’s richest people for decades running.
The two of them have worked side by side for Buffett’s multi-conglomerate Berkshire Hathaway since 1978. Although Munger isn’t in the spotlight as much as his partner, Buffett credits an overwhelming amount of his success to his alliance with him. And in recent years, Munger has begun to build a following in his own right based on how he has articulated his approach to life.
This mostly began when Munger emerged from the shadows to give a commencement speech at USC Business School in 1994 entitled Lesson on Elementary, Worldly Wisdom as It Relates to Investment Management & Business.
The impact of Munger’s speech has proven to be highly influential in the decades after it was delivered, as it introduced the concept of mental models,
which was subsequently disseminated to the public at large. He mused,
What is elementary, worldly wisdom? Well, the first rule is that you can’t really know anything if you just remember isolated facts and try and bang ’em back. If the facts don’t hang together on a latticework of theory, you don’t have them in a usable form. You’ve got to have models in your head. And you’ve got to array your experience—both vicarious and direct—on this latticework of models.
You may have noticed students who just try to remember and pound back what is remembered. Well, they fail in school and in life. You’ve got to hang experience on a latticework of models in your head.
What are the models? Well, the first rule is that you’ve got to have multiple models—because if you just have one or two that you’re using, the nature of human psychology is such that you’ll torture reality so that it fits your models, or at least, you’ll think it does. You become the equivalent of a chiropractor who, of course, is the great boob in medicine.
It’s like the old saying, To the man with only a hammer, every problem looks like a nail.
And of course, that’s the way the chiropractor goes about practicing medicine. But that’s a perfectly disastrous way to think and a perfectly disastrous way to operate in the world.
So you’ve got to have multiple models. And the models have to come from multiple disciplines—because all the wisdom of the world is not to be found in one little academic department. That’s why poetry professors, by and large, are so unwise in a worldly sense. They don’t have enough models in their heads. So you’ve got to have models across a fair array of disciplines.
You may say, My God, this is already getting way too tough.
But, fortunately, it isn’t that tough—because eighty or ninety important models will carry about ninety percent of the freight in making you a worldly wise person. And of those, only a mere handful really carry very heavy freight.
He went on to emphasize at a later point,
You must know the big ideas in the big disciplines and use them routinely—all of them, not just a few. Most people are trained in one model—economics, for example—and try to solve all problems in one way. You know the old saying: to the man with a hammer, the world looks like a nail. This is a dumb way of handling problems.
While I wouldn’t go so far as to say that having deep expertise in a discipline is dumb, it’s certainly not an optimal or efficient way of solving or understanding situations that life will toss your way. It leaves you woefully unequipped for whatever lies outside your primary knowledge base, but the answer isn’t to become an expert in every field. It’s finding your own latticework of mental models.
Thus, Munger makes it clear that to navigate the world without a set of mental models is tantamount to blindfolding yourself and randomly pointing to a spinning globe while trying to find Cuba. Without mental models as a blueprint to guide your thinking, you are only able to see haphazard, individual elements with no connection to each other.
To continue with his hammer analogy, if you are working on a construction site, it would serve you well to know how to use a hammer, saw, nails, drill, sander, and so on. The more tools you are familiar with, the better you can handle different and novel construction jobs; the more mental models you acquire, the better you can deal with and understand old and new life occurrences.
So what exactly is a mental model?
It’s a blueprint to draw your attention to the important elements of whatever you are facing, and it defines context, background, and direction. You gain understanding even if you lack actual knowledge or experience, and the ability to make optimal decisions.
For instance, if you are an aspiring chef, most of what you end up learning amounts to mental models: what kind of flavor profiles exist, what basic ingredients are needed for a stock or a sauce, typical techniques to use for different meats, and the conventional beverage and food pairings. Understand those, and you will generally know how to handle yourself with any type of cuisine. Absent a latticework of underlying models, each new recipe would present entirely new struggles.
Although many are universal, different situations will require different types of blueprints—and that’s why Munger so emphasized the latticework of mental models so as to be prepared in as many situations as possible. Without a mental model, you might see only a random assortment of lines. But with an applicable mental model, it’s like being handed a map to what all those lines mean—now you can correctly interpret information and make an informed decision.
Mental models provide an understanding of the situation, and predictable results for what will happen in the future. You can call them life heuristics or guidelines to evaluate and comprehend. You can also think of them as a set of goggles you can strap on when you want to focus on a specific goal.
You might be thinking that no model is an entirely perfect reflection of the world, but they don’t have to be. They just need to point us in the right direction to the complexity around us and filter the signal from the noise. Anyway, that’s better than the alternative of being completely blind.
We each already have our own mental models gleaned from years of simply living and noticing patterns of everyday life. Most of us have an idea of how to act in a fancy restaurant because we’ve been exposed to it in some way. We also have a set of mental models based on our values, experiences, and unique worldviews. You may refuse to use banks out of distrust for large institutions and keep your money tucked under your mattress as a rule of thumb—no one ever said all mental models are useful, accurate, or widely applicable. Indeed, some can consistently lead us down the wrong path.
By definition, our personal mental models are limited and only reflect a biased perspective.
If my mental approach is the only thing I use when I’m trying to perceive and understand the world, I’m not going to have a very broad spectrum of comprehension about the world. Invariably, I will get some things completely wrong and would come up blank in other situations when nothing in my experience can apply.
That’s where this book comes in. I want to introduce a latticework of mental models for you to operate better in the world. Some are specific, while some are universal and widely applicable. They will all assist you in thinking more clearly, making better decisions, and finding clarity in confusion.
Seeing the same object or event through different mental models will give you vastly different perspectives based on what you are focusing on, and certainly a wider array than if you would have just stuck to your own frame of reference. The more varied perspectives you possess, the more of the world we can understand.
Our aspiring chef from earlier can view a basket of ingredients through a baker’s lens, a classic French chef’s lens, a sandwich artist’s lens, or a Szechuan Chinese chef’s lens. None of these models is necessarily the most optimal, but they give you a frame of reference as opposed to just staring at a bunch of ingredients and not having any idea of what to do with them.
Perhaps the most important part of mental models is that they act to prevent human error—appropriately, another one of Munger’s famous speeches was titled, The Psychology of Human Misjudgment.
With too few mental models, you risk falling prey to the fable of the blind men and the elephant, which goes something like the following; there were once six blind men, and they all reached out and could only feel different parts of an elephant: the knee, the side, the tusk, the trunk, the ear, and the tail. None of these blind men were wrong in isolation, but they could only see from a single perspective, so they were wrong about the elephant’s overall appearance.
Multiple models challenge each other to produce a more unified overview, whereas just using one or two restricts your long-range view to a limited context or discipline. Having a huge range of mental models can expand your viewpoint and cancel out some of the stray errors
that using just one or two models would produce.
This doesn’t mean you have to know all the ins and outs of a million different disciplines to use multiple mental models. You just need to understand the basic points and fundamentals of a few essential ones. Just don’t be the person with a single hammer.
This first chapter delves deeply into decision-making mental models. In a sense, most mental models eventually help us with decisions, but these specific models are about how to process information more quickly and find an outcome that you are more likely to be happy with. In other words, they get you from Point A to Point B in