Digital TIME Cover: Optimism By Betsy Rothstein|May 26, 2011Share By Betsy Rothstein|May 26, 2011Share TIME‘s cover this week: The Science of Optimism HOPE ISN’T RATIONAL–SO WHY ARE HUMANS WIRED FOR IT? Inside: TIME’S White House Correspondent Michael Scherer reports from inside Obama’s Chicago Campaign HQ: Interviews with David Plouffe and David Axeldrod. Plouffe says: “I can’t tell you what a gift, if we use it properly, this year is. If we don’t, shame on us.” Read the full story here. Adweek Adweek