How do you get a genius brain? Is it all in your DNA? Or is it hard work? Is it possible that everyone's brain has untapped genius -- just waiting for the right circumstances so it can be unleashed? From a man who suddenly acquired an extraordinary musical gift after a freak head injury to a "memory athlete" who can remember strings of hundreds of random numbers, David Pogue meets people stretching the boundaries of what the human mind can do. Then, Pogue puts himself to the test: After high-res scanning, he finds out how the anatomy of his brain measures up against the greatest mind of the century -- Albert Einstein.