Read "1Q84 Book 1: April - June" by Haruki Murakami online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
Tengo thought about his brain. Lots of things made him do this.
The size of the human brain had increased four times over the past two and a half million years. In terms of weight, the brain occupied only two percent of the human body, but it consumed some forty percent of the body's total energy (according to a book he had recently read). Owing to the dramatic expansion of the brain, human beings had been able to acquire the concepts of time, space, and possibility.