Some of the parallels are legitimate, says Nicholas Christakis, professor of sociology and medicine at Yale University and author of “Apollo’s Arrow: The Profound and Enduring Impact of Coronavirus on the Way We Live.” After an interim period of “coping with the clinical, psychological and economic shock of the virus,” he says, we’ll see an uplift this summer, with a post-pandemic period taking root by 2023. It will, he says, be “a bit of a party.” “Understandably, people will be very relieved when this is all finally over. People have been cooped one way or another for a very long time,” Christakis says. “We’re going to see people relentlessly seeking out social opportunities in nightclubs and restaurants and bars and sporting events and musical concerts and political rallies. We might see some sexual licentiousness, some loosening of sexual mores.”... “People seem to think we just leapt into the Roaring Twenties,” says Barry. “But first we went through 1919, which is one of the most chaotic and violent years in American history. Then you had a serious recession in 1920, 1921. The aftermath this time, one would hope, is quite different.”