On a cold February day, the two men and the brain leave New Jersey and light out on I-70 for sunny California, where Einstein's perplexed granddaughter, Evelyn, awaits. And riding along as the imaginary fourth passenger is Einstein himself, an id-driven genius, the original galactic slacker with his head in the stars. Part travelogue, part memoir, part history, part biography, and part meditation, Driving Mr. Albert is one of the most unique road trips in modern literature.