Forget everything you've read about the age of dumbed-down, instant-gratification culture. In this provocative, intelligent, and convincing endorsement of today's mass entertainment, national bestselling author Steven Johnson argues that the pop culture we soak in every day-from The Lord of the Rings to Grand Theft Auto to The Simpsons-has been growing more and more sophisticated and, far from rotting our brains, is actually posing new cognitive challenges that are making our minds measurably sharper. You will never regard the glow of the video game or television screen the same way again.