Review: 21 Lessons for the 21st Century by Yuval Noah Harari

Harari reveals that our 21st century world is changing faster than ever before, and the future is not what we expect. It’s up to us to redefine success in this new era of unpredictability. People around the world need a guide on how they can survive in such an uncertain time

The “21 lessons for the 21st century summary” is a book written by Yuval Noah Harari. The book provides 21 lessons that will help people navigate the future.

What is Yuval Noah Harari’s background?

Yuval Noah Harari is a professor at Jerusalem’s Hebrew University. He holds a Ph.D. in history from the University of Oxford and specializes in global history. After Sapiens: A Brief History of Mankind and Homo Deus: A Brief History of Tomorrow, 21 Lessons for the Twenty-First Century is his third best-selling book. Over 20 million copies of the three novels have been sold worldwide. 

While I haven’t read his other two works, they are well-known for outlining where we came from and where we are going as a species. As a result, his third book should drive us to consider current storylines, the issues that mankind faces, and how we may best prepare ourselves and our children right now.

Visit to discover more about Dr. Harari and his work.

What will you learn in 21 Lessons for the Twenty-First Century?

Dr. Harari identifies three major difficulties or worries facing humanity in the twenty-first century. These are they:

  1. Nuclear Warfare and Weapons of Mass Destruction
    • Some of the “learning” lead to international wars. This is a serious possibility because of our disagreements and our incapacity to coexist in certain circumstances.
  2. The connection between artificial intelligence and biotechnology has progressed.
    • Due to increasing capabilities and the elimination of human mistake, their merging may result in the widespread replacement of current occupations.
    • Their capacity to comprehend us and our aspirations may lead to a rise in disputes over our existing notions of liberty and equality.
  3. Climate Change or Ecological Catastrophe

Lessons & Narratives

The 21 “lessons” symbolize societal issues such as war, religion, and immigration. They explain how each may contribute to one of the three primary difficulties or be part of the solution. These are not the solutions. You should not read this book in order to discover any. You will, however, discover a framework for analyzing the progress we make in each of the three areas listed above. Dr. Harari states these “lessons” “seek to provoke deeper thought and enable readers engage in some of our time’s significant discussions.” (4).

Harari also questions the “tales” or narratives that have molded the many glasses through which we see the world. Religions, morals, and the beliefs with which we have formed our own story for our lives and their purpose are examples. 

Furthermore, Harari claims that the defects in our political institutions must be investigated. Liberal democracy has long been shown to be the best suited political system for supporting the growth of our species and attaining coexistence (as opposed to Communism and Fascism). Nonetheless, it contains problems in how it approaches each of Dr. Harari’s three primary difficulties. 

To understand the events of this century objectively, we must be ready to identify the errors in our society’s narratives. Then we’ll be able to devise strategies for overcoming or even avoiding these three major problems.

Final Score: 9/10

Dr. Harari’s dissection of the limits of our worldviews in 21 Lessons for the Twenty-First Century was fascinating to me. This book serves as a reminder that we interpret news based on the narrative we choose to follow (religion, political party, and so on). They all have defects, and we can only contribute to the most important dialogues of our time if we recognize them.

This book will push you to think about all of the stories that shape who we are and how we make decisions. You’re in the business of fixing problems if you’re an ambitious entrepreneur. As a result, you should study Dr. Harari’s work and learn how to interpret the world in order to solve our species’ most serious limits.

I give this book a 9 out of 10! You can get the 21 Lessons for the Twenty-First Century audiobook on Audible or the paper copy on Amazon if you’re old school like me.

Have you read anything by Yuval Noah Harari? Leave your thoughts in the comments, and if you liked this post, you’ll appreciate my other book reviews!

The “21 lessons for the 21st century chapters” is a book by Yuval Noah Harari. It was published in 2017. The book is about the future of humanity and how we can adapt to it.

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