An article in the Chicago Tribune the other day told the story of one of Barack Obama’s Chicago buddies, Eric Whitaker, who lugged his laptop to a party at the Democratic convention in Denver last summer. The piece quoted another Obama buddy, Marty Nesbitt, on Whitaker’s “addiction.” “We were going to a cocktail party at 10 at night. A party!” Nesbitt said. “And he had his cord and laptop.” Nesbitt called this “hilarious.” In other words, “deeply sad.” Everybody knows about BlackBerry addicts. Less is written about the laptop addict.