Python Data Analysis and Machine Learning - Alexandre Gravier

Our brains are good at letting us navigate the physical world and interact with each others because their specialized mechanisms and structure are the result of selective competition. This structure makes that the brain, at birth, is not an empty box ready to be filled with knowledge pouring from our senses. Instead, the brain is more like the rough outline of a fully functional mind. The silhouette it there, the details just need to be carved out. This analogy is quite good, as a lot of the early learning and brain development consists in pruning unused neural connections.