Our brains are incredibly nimble pieces of machinery, and are actively being rewired and rewritten in response to experience. According to David Eagleman, a neuroscientist at Stanford University, the physical impact of this rewiring is so drastic that imaging is capable of distinguishing the motor cortex of a violinist from that of a pianist. Eagleman is the author of the book Livewired: The Inside Story of the Ever-Changing Brain, and he walks us through how our daily habits – and forces including social feedback, shifting relevance, and curiosity – can reshape our phenomenally flexible and hardy brains.