https://www.wsj.com/articles/livewired-book-review-network-effect-11599256662

There’s a widely perpetuated myth about the human brain that claims we only use 10% of it. If this were true, injury to the brain wouldn’t matter much, so long as you injure one of the unused parts. In fact, there is no area of the brain that can be damaged without consequences, and those consequences vary depending on such things as what part of the brain is compromised, the severity of the injury, and how old you are when you experience the loss. But what our brains do possess is something perhaps more wonderful than a supposed reservoir of untapped grey matter. They have a powerful ability to work around wounds, generating...