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What are mental models?
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What are mental models?

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/Thinking Scientifically and Rationally, Mental Models - Alina Gries
Thinking Scientifically and Rationally, Mental Models - Alina Gries
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What are mental models?
  • George Mack about Mental Models
  • How mental models can improve your thinking
  • Which big disciplines are there? An overview.
  • Quiz: What can you remember? True or False?
  • Sources (alphabetically ordered)

In general mental models are a representation of how something works. We cannot keep all of the details of the world in our brains, so we use models to simplify the complex into understandable and organizable chunks. However, mental models do not have a single, specific definition and can vary greatly from person to person. (Farnam Street. (2023, January 10)).

George Mack about Mental Models

One prominent advocate for mental models is George Mack, a well-known figure on Twitter who frequently discusses their application. In a podcast, George Mack provides his own explanation of mental models. Let's listen to his insights.

George Mack explains mental models.

George Mack sees mental models as powerful tools that aid in understanding and decision-making. They are like apps that we plug into our consciousness to navigate various situations and make sense of the world. These mental models serve as interpretive frameworks through which we view and interpret information, allowing us to grasp complex concepts more easily. (Chris Williamson. (2019, May 7)).

Just as operating systems provide the foundation for our devices to function, mental models serve as the underlying structure for our thinking processes. They are like recipes for decision-making, providing us with guidelines and strategies to approach different scenarios effectively. (Chris Williamson. (2019, May 7)).

A latticework of mental models is formed by drawing insights from various disciplines and fields of knowledge. It is a network of interconnected ideas that help us connect the dots and gain a deeper understanding of the world. Mental models act as analogies that enable us to explain complex concepts and phenomena in simpler terms. (Chris Williamson. (2019, May 7)).

By employing mental models, we can enhance our problem-solving abilities, make better decisions, and gain a broader perspective on diverse subjects. They enable us to see beyond the surface and uncover hidden patterns and connections. (Chris Williamson. (2019, May 7)).

In summary, mental models are cognitive tools that facilitate understanding, decision-making, and problem-solving. They provide us with a framework to navigate the complexities of the world, drawing from different disciplines and offering analogies to clarify concepts. By incorporating mental models into our thinking, we can unlock new insights and improve our overall cognitive abilities. (Chris Williamson. (2019, May 7)).

How mental models can improve your thinking

“The quality of our thinking is proportional to the models in our head and their usefulness in the situation at hand. The more models you have—the bigger your toolbox—the more likely you are to have the right models to see reality.” — Farnam Street. (2023, January 10)

This quote highlights the importance of having a diverse range of mental models to make sense of the world around us. It implies that our ability to think rationally and scientifically is dependent on the quality and variety of models we possess. By incorporating different models into our thinking, we can gain new perspectives, make better decisions, and solve problems more effectively. (Thinknetic (2022)).

Own illustration (Alina Gries), Idea from Farnam Street. (2023, January 10)
Own illustration (Alina Gries), Idea from Farnam Street. (2023, January 10)
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Hence, study and practice as many mental models as possible, to optimize the quality of your thinking!

Which big disciplines are there? An overview.

Mental models draw insights from a wide range of disciplines, encompassing biology, chemistry, physics, psychology, microeconomics, numeracy, military and war strategies, as well as systems thinking and core decision-making models. (Farnam Street. (2023, January 10)).

Types of mental models. Own illustration (Alina Gries)
Types of mental models. Own illustration (Alina Gries)
https://images.unsplash.com/photo-1637929476734-bd7f5f78e40a?ixlib=rb-4.0.3&q=85&fm=jpg&crop=entropy&cs=srgb

In biology, mental models can be related to concepts such as evolution, ecosystems, interdependence, and biological systems. They help us understand the intricacy and interdependence of biological systems. (Farnam Street. (2023, January 10)).

In chemistry, mental models help us understand chemical reactions, atomic structure, and behavior of different elements and compounds. (Farnam Street. (2023, January 10)).

https://images.unsplash.com/photo-1628863353691-0071c8c1874c?ixlib=rb-4.0.3&q=85&fm=jpg&crop=entropy&cs=srgb
https://images.unsplash.com/photo-1636466497217-26a8cbeaf0aa?ixlib=rb-4.0.3&q=85&fm=jpg&crop=entropy&cs=srgb

In physics, mental models are related to fundamental laws such as Newton’s laws of motion or thermodynamics. (Farnam Street. (2023, January 10)).

In psychology, mental models can help us understand cognitive processes and human behavior, as well as social interactions and decision-making biases. (Farnam Street. (2023, January 10)).

https://images.unsplash.com/photo-1572625259782-94ac200efcdb?ixlib=rb-4.0.3&q=85&fm=jpg&crop=entropy&cs=srgb
https://images.unsplash.com/photo-1565373677928-90e963765eac?ixlib=rb-4.0.3&q=85&fm=jpg&crop=entropy&cs=srgb

In microeconomics, mental models help to understand economic choices and incentives, as well as market dynamics and resource allocation.(Farnam Street. (2023, January 10)).

Numeracy includes mental models that relate to math and statistical thinking. These models improve our ability to understand data, make numerical judgments, and problem solve using math-based principles. (Farnam Street. (2023, January 10)).

https://images.unsplash.com/photo-1635070041078-e363dbe005cb?ixlib=rb-4.0.3&q=85&fm=jpg&crop=entropy&cs=srgb
https://images.unsplash.com/photo-1628434752743-c2437d37cdd0?ixlib=rb-4.0.3&q=85&fm=jpg&crop=entropy&cs=srgb

Military and war strategies include mental models that help us analyze tactics, lead, and make strategic decisions. (Farnam Street. (2023, January 10)).

Systems thinking includes mental models that highlight the interdependence and feedback loops in complex systems. They help us see how different parts interact and how shifts in one part of the system can have knock-on effects in other parts of the system. (Farnam Street. (2023, January 10)).

https://images.unsplash.com/photo-1527266237111-a4989d028b4b?ixlib=rb-4.0.3&q=85&fm=jpg&crop=entropy&cs=srgb
https://images.unsplash.com/photo-1600074169098-16a54d791d0d?ixlib=rb-4.0.3&q=85&fm=jpg&crop=entropy&cs=srgb

Decision-making mental models include core thinking models that provide frameworks for cost-benefit, risk, and logical thinking. These frameworks help us make better decisions by considering different factors, evaluating possible outcomes, and considering different options. (Farnam Street. (2023, January 10)).

Go directly to core thinking models: Core thinking models

Quiz: What can you remember? True or False?

  1. By employing mental models, we can enhance our problem-solving abilities, make better decisions, and gain a broader perspective on diverse subjects.
  2. A latticework of mental models is formed by drawing insights from various disciplines and fields of knowledge, helping us gain a deeper understanding of the world.
  3. The quality of our thinking is related to the models in our head and their usefulness in the given situation.
  4. Mental models draw insights from a wide range of disciplines, encompassing biology, chemistry, physics, psychology, microeconomics, numeracy, military and war strategies, as well as systems thinking and core decision-making models.

Go to next page: Learn more about mental models from the big disciplines

Sources (alphabetically ordered)

  1. Chris Williamson. (2019, May 7). Mental Models 101 - How To Make Better Decisions | George Mack | Modern Wisdom Podcast 069 [Video]. YouTube. https://www.youtube.com/watch?v=m_56L8EGLIk
  2. Farnam Street. (2023, January 10). Mental Models: The Best Way to Make Intelligent Decisions (~100 Models Explained). https://fs.blog/mental-models/
  3. Thinknetic. (2022). Mental Models In A Nutshell: Practical Thinking Frameworks To Amplify Your Decision Making And Simplify Your Life.

© Chair for Strategy and Organization, Technical University of Munich

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