The Great Mental Models Volume 2 Book Summary - The Great Mental Models Volume 2 Book explained in key points
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The Great Mental Models Volume 2 summary

Shane Parrish and Rhiannon Beaubien

Physics, Chemistry and Biology

4.1 (153 ratings)
23 mins

Brief summary

The Great Mental Models Volume 2 by Shane Parrish and Rhiannon Beaubien is a practical guide that teaches readers how to develop a deep understanding of the world around them by mastering a set of mental models - frameworks for thinking that can be applied in a variety of contexts.

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    The Great Mental Models Volume 2
    Summary of 7 key ideas

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    Key idea 1 of 7

    When it comes to social change, mass matters.

    Paris, 1905. The cafés are full. Waiters bustle from table to table setting down small glasses of green liquor. The smell of aniseed fills the air.

    The beverage being served is absinthe – a fashionable aperitif that became notorious for its potency.

    In the early twentieth century, newspapers began running sensational stories about absinthe’s effects. It’s as addictive as opium! It drives drinkers insane! The stories cited the case of Jean Lanfray, a man who murdered his family in an absinthe-fueled rage. People began to campaign against absinthe, insisting that it be outlawed. 

    Meanwhile, not much was being written about lead, a toxic metal that was used to make the pipes that conveyed drinking water. Lead was present in hundreds of other products, too, from paint to glassware to makeup. But, despite its dangers, there was no campaign to ban lead.

    The key message in this blink is: When it comes to social change, mass matters. 

    The claims about absinthe were bunk. It wasn’t any more harmful than other high-percentage alcohols, and it certainly didn’t drive you mad. But the writing was on the wall after Lanfray’s “absinthe murders.” Switzerland banned it in 1908; France followed in 1914.

    Lead was different. The evidence against it wasn’t overstated – it was simply ignored. The Roman architect Vitruvius had warned his contemporaries against putting water in lead pipes around 15 BCE. In the 1910s, the American industrial toxicologist Alice Hamilton provided definitive proof of the dangers of lead exposure. It didn’t matter: lead continued to be added to paints and gasoline well into the 1980s.

    So what explains the different reactions to absinthe and lead? 

    Physics can help us answer this question. Take the concept of inertia, which describes the resistance of objects to changes in their state of motion. Stationary objects remain stationary and moving objects continue moving unless they meet an opposing force like propulsion or friction. Mass matters here. The larger the object, the more force is needed to move or stop it.

    Substances like lead and absinthe have a kind of “societal mass,” and the same rule applies. Lead had been used for millennia and “stopping it” – that is, getting rid of it – meant changing everything from how walls were painted to how cars were fueled. Absinthe, by comparison, was a lightweight: it hadn’t been around long and all it did was get people drunk – something other liquors did just as well without appearing to drive men to murder their families. Lead, in other words, had lots of societal mass while absinthe had very little.

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    What is The Great Mental Models Volume 2 about?

    The Great Mental Models Volume 2 (2019) is all about the art of making unexpected connections. Rooted in the “hard” sciences, it unpacks core concepts from physics, chemistry, and biology. But it’s not only about electrons, elements, and evolution. The ideas covered in this fascinating intellectual history can also be applied to everyday life.

    The Great Mental Models Volume 2 Review

    The Great Mental Models Volume 2 (2021) is a book that delves into the power of mental models and how they shape our thinking and decision-making. Here's why this book is worth reading:

    • It offers a wide range of practical mental models that can be applied to everyday life, improving problem-solving skills and decision-making processes.
    • The book draws from a diverse range of real-world examples and case studies, making it relatable and applicable to a variety of situations.
    • With its engaging writing and thought-provoking insights, the book ensures that readers will not find the topic of mental models boring, instead finding it captivating and enlightening.

    Who should read The Great Mental Models Volume 2?

    • Lateral thinkers
    • Scientists interested in a new angle on familiar concepts
    • Anyone looking for a good mental workout

    About the Author

    Shane Parish worked as a cybersecurity expert for Canada’s top intelligence agency before founding Farnam Street, an organization dedicated to helping people think smarter in an ever-changing world. His work has been featured in the New York Times, the Wall Street Journal, the Huffington Post, and Forbes. He’s also the host of the Knowledge Project, a podcast that has been downloaded over 10 million times.

    Rhiannon Beaubien is a Canadian writer and the author of Alone Among Spies, a novel about spycraft that draws on her background in intelligence. Beaubien is a key member of Farnam Street, where she contributes to its blog and manages the development of the Great Mental Models book series.

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    The Great Mental Models Volume 2 FAQs 

    What is the main message of The Great Mental Models Volume 2?

    The main message of The Great Mental Models Volume 2 is to enhance your decision-making skills using mental models.

    How long does it take to read The Great Mental Models Volume 2?

    The reading time for The Great Mental Models Volume 2 varies depending on the reader, but it typically takes a few hours. The Blinkist summary can be read in just 15 minutes.

    Is The Great Mental Models Volume 2 a good book? Is it worth reading?

    The Great Mental Models Volume 2 is worth reading as it provides valuable insights for improving decision-making and critical thinking.

    Who is the author of The Great Mental Models Volume 2?

    The authors of The Great Mental Models Volume 2 are Shane Parrish and Rhiannon Beaubien.

    What to read after The Great Mental Models Volume 2?

    If you're wondering what to read next after The Great Mental Models Volume 2, here are some recommendations we suggest:
    • The Great Mental Models by Shane Parrish and Rhiannon Beaubien
    • The Great Mental Models Volume 3 by Rhiannon Beaubien and Rosie Leizrowice
    • Super Thinking by Gabriel Weinberg with Lauren McCann
    • Mindware by Richard E. Nisbett
    • Clear Thinking by Shane Parrish
    • The Five Elements of Effective Thinking by Edward B. Burger and Michael Starbird
    • Talking to Strangers by Malcolm Gladwell
    • Ultralearning by Scott H. Young
    • Think and Grow Rich by Napoleon Hill
    • Tiny Habits by BJ Fogg