The God Equation
Michio Kaku
Follow science’s pursuit of one equation that unites every force of nature, from Newton and Einstein to modern string theory.

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Outline
What's it about?
The God Equation (2021) tells the story of physicists’ search for a single theory that could explain all the forces of nature, from gravity to the forces inside the atom. Michio Kaku traces this quest from Newton and Einstein to quantum mechanics and string theory, and explains why uniting these ideas is one of science’s greatest challenges. The book makes complex physics clear and exciting for general readers.
Key ideas
- Physicists have long searched for a single theory that could explain all the forces of nature, from gravity to the forces inside the atom.
- The quest runs from Newton and Einstein through quantum mechanics to modern string theory.
- Uniting these ideas into one theory is one of the greatest challenges in science.
- Complex physics can be explained clearly and made exciting for general readers who are not specialists.
About the author
Michio Kaku is an American theoretical physicist, professor at the City College of New York, and one of the world’s best-known popularisers of science. He is a co-founder of string field theory and a frequent guest on television and radio programmes about science. His bestselling books include Physics of the Impossible, Physics of the Future, The Future of Humanity, and The God Equation.
Questions people ask
What is The God Equation by Michio Kaku about?
It tells the story of physicists' search for one theory that explains all the forces of nature, from gravity to the forces inside the atom. Kaku follows the quest from Newton and Einstein to quantum mechanics and string theory.
Who is The God Equation for?
It is written for general readers, not specialists. It aims to make complex physics clear and exciting for anyone curious about how nature works.
How long is the Durar summary of The God Equation?
The Durar summary takes about 15 minutes to read or listen to. It covers the main story of the search for a single theory of nature's forces.
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