I read it after it was recommended indirectly by Demis Hassabis.
The book explores the creation of a theory of everything that can explain everything in the universe. This isn't about unifying gravity and quantum theory—it's about including life, minds, and society. The goal is to create a theory that makes sense at all these levels.
This book gives a beautiful insight:
Let’s think about an atoms of carbon. Let’s try to predict it’s movement. It feels very much like a physical problem like the one teach at school. And indeed there are equations that can help us answer this question. And theses equations can help solve big problems and have applications.
That said, if this atoms of carbon is part of a chess piece, all the classic physic will be helpless to predict it’s next move. Predicting the move of it will require the understanding of the rules of chess, and about who is playing.