the bigger challenge for us in the digital age is not the mental pollution of information overload, but the nutritional deficiency of the content that has been engineered, like modern snacks, to trigger our appetites. Online information is increasingly hyperpalatable, akin to alluring junk food. Breaking news, tabloid gossip, viral memes, and the latest controversies in sports, politics, and entertainment all draw us to our phones as if they were deep-fried Twinkies held out on sticks at the state fair.