To replace wiring diagrams, Marcus suggests a better analogy
To replace wiring diagrams, Marcus suggests a better analogy: The brain is like a book, the first draft of which is written by the genes during fetal development.
— from Who Is Flying (Self, Nature & Nurture)
In the book
We do inherit and transmit a great deal — behaviors, emotions, beliefs, even our religion pass down more than we like to think. But modern science draws the same picture with a kinder metaphor: the brain is a book whose rough first draft is written by your genes and then revised, chapter by chapter, by everything you experience and choose. Nature writes the opening. — Who Is Flying (Self, Nature & Nurture)