* Why do plants start to grow when the weather gets warmer in spring?
* What is the principle of the revival of all things and where does life come from?
* Why did the human head get bigger and bigger and develop a brilliant brain?
* How did humans grow into the species that dominates the Earth?
* Where does human greed come from and what are the means to control it?
Here, I believe that the background of human brain growth and the source of greed are the same reasons for the birth of all life. I would like to introduce my hypothesis about the secret of human brain growth along with the secret of life. Based on this hypothesis, I would like to explain how life was born on Earth, why human brains became larger and larger, and why humans become greedy and constantly rising in the same context. I am neither a scientist nor an anthropologist, so the hypothesis on which this book is based may be absurd, but rather, I am trying to uncover the secrets of the birth of life and the secrets of the growth of the human brain through wild and bold imagination.
